Struct JsValue 

pub struct JsValue { /* private fields */ }

Representation of an object owned by JS.

A JsValue doesn’t actually live in Rust right now but actually in a table owned by the wasm-bindgen generated JS glue code. Eventually the ownership will transfer into Wasm directly and this will likely become more efficient, but for now it may be slightly slow.

Implementations

impl JsValue

pub const NULL: JsValue

The null JS value constant.

pub const UNDEFINED: JsValue

The undefined JS value constant.

pub const TRUE: JsValue

The true JS value constant.

pub const FALSE: JsValue

The false JS value constant.

pub fn from_str(s: &str) -> JsValue

Creates a new JS value which is a string.

The utf-8 string provided is copied to the JS heap and the string will be owned by the JS garbage collector.

pub fn from_f64(n: f64) -> JsValue

Creates a new JS value which is a number.

This function creates a JS value representing a number (a heap allocated number) and returns a handle to the JS version of it.

pub fn bigint_from_str(s: &str) -> JsValue

Creates a new JS value which is a bigint from a string representing a number.

This function creates a JS value representing a bigint (a heap allocated large integer) and returns a handle to the JS version of it.

pub const fn from_bool(b: bool) -> JsValue

Creates a new JS value which is a boolean.

This function creates a JS object representing a boolean (a heap allocated boolean) and returns a handle to the JS version of it.

pub const fn undefined() -> JsValue

Creates a new JS value representing undefined.

pub const fn null() -> JsValue

Creates a new JS value representing null.

pub fn symbol(description: Option<&str>) -> JsValue

Creates a new JS symbol with the optional description specified.

This function will invoke the Symbol constructor in JS and return the JS object corresponding to the symbol created.

pub fn from_serde<T>(t: &T) -> Result<JsValue, Error>

where T: Serialize + ?Sized,

👎Deprecated: causes dependency cycles, use serde-wasm-bindgen or gloo_utils::format::JsValueSerdeExt instead

Creates a new JsValue from the JSON serialization of the object t provided.

This function is deprecated, due to creating a dependency cycle in some circumstances. Use serde-wasm-bindgen or gloo_utils::format::JsValueSerdeExt instead.

This function will serialize the provided value t to a JSON string, send the JSON string to JS, parse it into a JS object, and then return a handle to the JS object. This is unlikely to be super speedy so it’s not recommended for large payloads, but it’s a nice to have in some situations!

Usage of this API requires activating the serde-serialize feature of the wasm-bindgen crate.

Errors

Returns any error encountered when serializing T into JSON.

pub fn into_serde<T>(&self) -> Result<T, Error>

where T: for<'a> Deserialize<'a>,

👎Deprecated: causes dependency cycles, use serde-wasm-bindgen or gloo_utils::format::JsValueSerdeExt instead

Invokes JSON.stringify on this value and then parses the resulting JSON into an arbitrary Rust value.

This function is deprecated, due to creating a dependency cycle in some circumstances. Use serde-wasm-bindgen or gloo_utils::format::JsValueSerdeExt instead.

This function will first call JSON.stringify on the JsValue itself. The resulting string is then passed into Rust which then parses it as JSON into the resulting value.

Usage of this API requires activating the serde-serialize feature of the wasm-bindgen crate.

Errors

Returns any error encountered when parsing the JSON into a T.

pub fn as_f64(&self) -> Option<f64>

Returns the f64 value of this JS value if it’s an instance of a number.

If this JS value is not an instance of a number then this returns None.

pub fn is_string(&self) -> bool

Tests whether this JS value is a JS string.

pub fn as_string(&self) -> Option<String>

If this JS value is a string value, this function copies the JS string value into Wasm linear memory, encoded as UTF-8, and returns it as a Rust String.

To avoid the copying and re-encoding, consider the JsString::try_from() function from js-sys instead.

If this JS value is not an instance of a string or if it’s not valid utf-8 then this returns None.

UTF-16 vs UTF-8

JavaScript strings in general are encoded as UTF-16, but Rust strings are encoded as UTF-8. This can cause the Rust string to look a bit different than the JS string sometimes. For more details see the documentation about the str type which contains a few caveats about the encodings.

pub fn as_bool(&self) -> Option<bool>

Returns the bool value of this JS value if it’s an instance of a boolean.

If this JS value is not an instance of a boolean then this returns None.

pub fn is_null(&self) -> bool

Tests whether this JS value is null

pub fn is_undefined(&self) -> bool

Tests whether this JS value is undefined

pub fn is_null_or_undefined(&self) -> bool

Tests whether this JS value is null or undefined

pub fn is_symbol(&self) -> bool

Tests whether the type of this JS value is symbol

pub fn is_object(&self) -> bool

Tests whether typeof self == "object" && self !== null.

pub fn is_array(&self) -> bool

Tests whether this JS value is an instance of Array.

pub fn is_function(&self) -> bool

Tests whether the type of this JS value is function.

pub fn is_bigint(&self) -> bool

Tests whether the type of this JS value is bigint.

pub fn js_typeof(&self) -> JsValue

Applies the unary typeof JS operator on a JsValue.

MDN documentation

pub fn js_in(&self, obj: &JsValue) -> bool

Applies the binary in JS operator on the two JsValues.

MDN documentation

pub fn is_truthy(&self) -> bool

Tests whether the value is “truthy”.

pub fn is_falsy(&self) -> bool

Tests whether the value is “falsy”.

pub fn loose_eq(&self, other: &JsValue) -> bool

Compare two JsValues for equality, using the == operator in JS.

MDN documentation

pub fn bit_not(&self) -> JsValue

Applies the unary ~ JS operator on a JsValue.

MDN documentation

pub fn unsigned_shr(&self, rhs: &JsValue) -> u32

Applies the binary >>> JS operator on the two JsValues.

MDN documentation

pub fn checked_div(&self, rhs: &JsValue) -> JsValue

Applies the binary / JS operator on two JsValues, catching and returning any RangeError thrown.

MDN documentation

pub fn pow(&self, rhs: &JsValue) -> JsValue

Applies the binary ** JS operator on the two JsValues.

MDN documentation

pub fn lt(&self, other: &JsValue) -> bool

Applies the binary < JS operator on the two JsValues.

MDN documentation

pub fn le(&self, other: &JsValue) -> bool

Applies the binary <= JS operator on the two JsValues.

MDN documentation

pub fn ge(&self, other: &JsValue) -> bool

Applies the binary >= JS operator on the two JsValues.

MDN documentation

pub fn gt(&self, other: &JsValue) -> bool

Applies the binary > JS operator on the two JsValues.

MDN documentation

pub fn unchecked_into_f64(&self) -> f64

Applies the unary + JS operator on a JsValue. Can throw.

MDN documentation

Trait Implementations

impl Add<&JsValue> for JsValue

type Output = <&'static JsValue as Add>::Output

The resulting type after applying the + operator.

fn add(self, other: &JsValue) -> <&'static JsValue as Add>::Output

Performs the + operation.

impl<'a> Add<JsValue> for &'a JsValue

type Output = <&'static JsValue as Add>::Output

The resulting type after applying the + operator.

fn add(self, other: JsValue) -> <&'static JsValue as Add>::Output

Performs the + operation.

impl Add for &JsValue

fn add(self, rhs: &JsValue) -> <&JsValue as Add>::Output

Applies the binary + JS operator on two JsValues.

MDN documentation

type Output = JsValue

The resulting type after applying the + operator.

impl Add for JsValue

type Output = <&'static JsValue as Add>::Output

The resulting type after applying the + operator.

fn add(self, other: JsValue) -> <&'static JsValue as Add>::Output

Performs the + operation.

impl AsRef<JsValue> for Array

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for ArrayBuffer

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for AsyncIterator

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for BigInt

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for BigInt64Array

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for BigUint64Array

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Boolean

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for CanvasGradient

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for CanvasRenderingContext2d

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl<T> AsRef<JsValue> for Closure<T>

where T: ?Sized,

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Collator

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for CompileError

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for DataView

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Date

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for DateTimeFormat

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Document

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for DomMatrix

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for DomMatrixReadOnly

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Element

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Error

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for EvalError

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Event

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for EventTarget

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Exception

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Float32Array

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Float64Array

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Function

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Generator

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Global

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for HtmlCanvasElement

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for HtmlCollection

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for HtmlElement

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for ImageBitmap

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for ImageData

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Instance

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Int16Array

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Int32Array

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Int8Array

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Iterator

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for IteratorNext

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for JsString

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for JsValue

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for LinkError

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Location

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Map

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Memory

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Module

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Navigator

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Node

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Number

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for NumberFormat

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Object

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for PluralRules

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Promise

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Proxy

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for RangeError

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for ReferenceError

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for RegExp

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for RelativeTimeFormat

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Response

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for RuntimeError

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Set

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for SharedArrayBuffer

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Symbol

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for SyntaxError

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Table

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Tag

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for TextMetrics

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for TypeError

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Uint16Array

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Uint32Array

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Uint8Array

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Uint8ClampedArray

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for UriError

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for WeakMap

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for WeakRef

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for WeakSet

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Window

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl BitAnd<&JsValue> for JsValue

type Output = <&'static JsValue as BitAnd>::Output

The resulting type after applying the & operator.

fn bitand(self, other: &JsValue) -> <&'static JsValue as BitAnd>::Output

Performs the & operation.

impl<'a> BitAnd<JsValue> for &'a JsValue

type Output = <&'static JsValue as BitAnd>::Output

The resulting type after applying the & operator.

fn bitand(self, other: JsValue) -> <&'static JsValue as BitAnd>::Output

Performs the & operation.

impl BitAnd for &JsValue

fn bitand(self, rhs: &JsValue) -> <&JsValue as BitAnd>::Output

Applies the binary & JS operator on two JsValues.

MDN documentation

type Output = JsValue

The resulting type after applying the & operator.

impl BitAnd for JsValue

type Output = <&'static JsValue as BitAnd>::Output

The resulting type after applying the & operator.

fn bitand(self, other: JsValue) -> <&'static JsValue as BitAnd>::Output

Performs the & operation.

impl BitOr<&JsValue> for JsValue

type Output = <&'static JsValue as BitOr>::Output

The resulting type after applying the | operator.

fn bitor(self, other: &JsValue) -> <&'static JsValue as BitOr>::Output

Performs the | operation.

impl<'a> BitOr<JsValue> for &'a JsValue

type Output = <&'static JsValue as BitOr>::Output

The resulting type after applying the | operator.

fn bitor(self, other: JsValue) -> <&'static JsValue as BitOr>::Output

Performs the | operation.

impl BitOr for &JsValue

fn bitor(self, rhs: &JsValue) -> <&JsValue as BitOr>::Output

Applies the binary | JS operator on two JsValues.

MDN documentation

type Output = JsValue

The resulting type after applying the | operator.

impl BitOr for JsValue

type Output = <&'static JsValue as BitOr>::Output

The resulting type after applying the | operator.

fn bitor(self, other: JsValue) -> <&'static JsValue as BitOr>::Output

Performs the | operation.

impl BitXor<&JsValue> for JsValue

type Output = <&'static JsValue as BitXor>::Output

The resulting type after applying the ^ operator.

fn bitxor(self, other: &JsValue) -> <&'static JsValue as BitXor>::Output

Performs the ^ operation.

impl<'a> BitXor<JsValue> for &'a JsValue

type Output = <&'static JsValue as BitXor>::Output

The resulting type after applying the ^ operator.

fn bitxor(self, other: JsValue) -> <&'static JsValue as BitXor>::Output

Performs the ^ operation.

impl BitXor for &JsValue

fn bitxor(self, rhs: &JsValue) -> <&JsValue as BitXor>::Output

Applies the binary ^ JS operator on two JsValues.

MDN documentation

type Output = JsValue

The resulting type after applying the ^ operator.

impl BitXor for JsValue

type Output = <&'static JsValue as BitXor>::Output

The resulting type after applying the ^ operator.

fn bitxor(self, other: JsValue) -> <&'static JsValue as BitXor>::Output

Performs the ^ operation.

impl Clone for JsValue

fn clone(&self) -> JsValue

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for JsValue

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for JsValue

fn default() -> JsValue

Returns the “default value” for a type.

impl Div<&JsValue> for JsValue

type Output = <&'static JsValue as Div>::Output

The resulting type after applying the / operator.

fn div(self, other: &JsValue) -> <&'static JsValue as Div>::Output

Performs the / operation.

impl<'a> Div<JsValue> for &'a JsValue

type Output = <&'static JsValue as Div>::Output

The resulting type after applying the / operator.

fn div(self, other: JsValue) -> <&'static JsValue as Div>::Output

Performs the / operation.

impl Div for &JsValue

fn div(self, rhs: &JsValue) -> <&JsValue as Div>::Output

Applies the binary / JS operator on two JsValues.

MDN documentation

type Output = JsValue

The resulting type after applying the / operator.

impl Div for JsValue

type Output = <&'static JsValue as Div>::Output

The resulting type after applying the / operator.

fn div(self, other: JsValue) -> <&'static JsValue as Div>::Output

Performs the / operation.

impl Drop for JsValue

fn drop(&mut self)

Executes the destructor for this type.

impl<'a> From<&'a String> for JsValue

fn from(s: &'a String) -> JsValue

Converts to this type from the input type.

impl<'a, T> From<&'a T> for JsValue

where T: JsCast,

fn from(s: &'a T) -> JsValue

Converts to this type from the input type.

impl<'a> From<&'a str> for JsValue

fn from(s: &'a str) -> JsValue

Converts to this type from the input type.

impl<T> From<*const T> for JsValue

fn from(s: *const T) -> JsValue

Converts to this type from the input type.

impl<T> From<*mut T> for JsValue

fn from(s: *mut T) -> JsValue

Converts to this type from the input type.

impl From<Array> for JsValue

fn from(obj: Array) -> JsValue

Converts to this type from the input type.

impl From<ArrayBuffer> for JsValue

fn from(obj: ArrayBuffer) -> JsValue

Converts to this type from the input type.

impl From<AsyncIterator> for JsValue

fn from(obj: AsyncIterator) -> JsValue

Converts to this type from the input type.

impl From<BigInt> for JsValue

fn from(obj: BigInt) -> JsValue

Converts to this type from the input type.

impl From<BigInt64Array> for JsValue

fn from(obj: BigInt64Array) -> JsValue

Converts to this type from the input type.

impl From<BigUint64Array> for JsValue

fn from(obj: BigUint64Array) -> JsValue

Converts to this type from the input type.

impl From<Boolean> for JsValue

fn from(obj: Boolean) -> JsValue

Converts to this type from the input type.

impl<T> From<Box<[T]>> for JsValue

where T: VectorIntoWasmAbi,

fn from(vector: Box<[T]>) -> JsValue

Converts to this type from the input type.

impl From<CanvasGradient> for JsValue

fn from(obj: CanvasGradient) -> JsValue

Converts to this type from the input type.

impl From<CanvasRenderingContext2d> for JsValue

fn from(obj: CanvasRenderingContext2d) -> JsValue

Converts to this type from the input type.

impl From<CanvasWindingRule> for JsValue

fn from(val: CanvasWindingRule) -> JsValue

Converts to this type from the input type.

impl<T> From<Clamped<Box<[T]>>> for JsValue

where T: VectorIntoWasmAbi,

fn from(vector: Clamped<Box<[T]>>) -> JsValue

Converts to this type from the input type.

impl<T> From<Clamped<Vec<T>>> for JsValue

where T: VectorIntoWasmAbi,

fn from(vector: Clamped<Vec<T>>) -> JsValue

Converts to this type from the input type.

impl From<Collator> for JsValue

fn from(obj: Collator) -> JsValue

Converts to this type from the input type.

impl From<CompileError> for JsValue

fn from(obj: CompileError) -> JsValue

Converts to this type from the input type.

impl From<ConsoleTask> for JsValue

fn from(obj: ConsoleTask) -> JsValue

Converts to this type from the input type.

impl From<DataView> for JsValue

fn from(obj: DataView) -> JsValue

Converts to this type from the input type.

impl From<Date> for JsValue

fn from(obj: Date) -> JsValue

Converts to this type from the input type.

impl From<DateTimeFormat> for JsValue

fn from(obj: DateTimeFormat) -> JsValue

Converts to this type from the input type.

impl From<Document> for JsValue

fn from(obj: Document) -> JsValue

Converts to this type from the input type.

impl From<DomMatrix> for JsValue

fn from(obj: DomMatrix) -> JsValue

Converts to this type from the input type.

impl From<DomMatrixReadOnly> for JsValue

fn from(obj: DomMatrixReadOnly) -> JsValue

Converts to this type from the input type.

impl From<Element> for JsValue

fn from(obj: Element) -> JsValue

Converts to this type from the input type.

impl From<Error> for JsValue

fn from(obj: Error) -> JsValue

Converts to this type from the input type.

impl From<EvalError> for JsValue

fn from(obj: EvalError) -> JsValue

Converts to this type from the input type.

impl From<Event> for JsValue

fn from(obj: Event) -> JsValue

Converts to this type from the input type.

impl From<EventTarget> for JsValue

fn from(obj: EventTarget) -> JsValue

Converts to this type from the input type.

impl From<Exception> for JsValue

fn from(obj: Exception) -> JsValue

Converts to this type from the input type.

impl From<Float32Array> for JsValue

fn from(obj: Float32Array) -> JsValue

Converts to this type from the input type.

impl From<Float64Array> for JsValue

fn from(obj: Float64Array) -> JsValue

Converts to this type from the input type.

impl From<Function> for JsValue

fn from(obj: Function) -> JsValue

Converts to this type from the input type.

impl From<Generator> for JsValue

fn from(obj: Generator) -> JsValue

Converts to this type from the input type.

impl From<Global> for JsValue

fn from(obj: Global) -> JsValue

Converts to this type from the input type.

impl From<Global> for JsValue

fn from(obj: Global) -> JsValue

Converts to this type from the input type.

impl From<Global> for JsValue

fn from(obj: Global) -> JsValue

Converts to this type from the input type.

impl From<HtmlCanvasElement> for JsValue

fn from(obj: HtmlCanvasElement) -> JsValue

Converts to this type from the input type.

impl From<HtmlCollection> for JsValue

fn from(obj: HtmlCollection) -> JsValue

Converts to this type from the input type.

impl From<HtmlElement> for JsValue

fn from(obj: HtmlElement) -> JsValue

Converts to this type from the input type.

impl From<ImageBitmap> for JsValue

fn from(obj: ImageBitmap) -> JsValue

Converts to this type from the input type.

impl From<ImageData> for JsValue

fn from(obj: ImageData) -> JsValue

Converts to this type from the input type.

impl From<Instance> for JsValue

fn from(obj: Instance) -> JsValue

Converts to this type from the input type.

impl From<Int16Array> for JsValue

fn from(obj: Int16Array) -> JsValue

Converts to this type from the input type.

impl From<Int32Array> for JsValue

fn from(obj: Int32Array) -> JsValue

Converts to this type from the input type.

impl From<Int8Array> for JsValue

fn from(obj: Int8Array) -> JsValue

Converts to this type from the input type.

impl From<InterruptResult> for JsValue

fn from(value: InterruptResult) -> JsValue

Converts to this type from the input type.

impl From<Iterator> for JsValue

fn from(obj: Iterator) -> JsValue

Converts to this type from the input type.

impl From<IteratorNext> for JsValue

fn from(obj: IteratorNext) -> JsValue

Converts to this type from the input type.

impl From<JsClosure> for JsValue

fn from(obj: JsClosure) -> JsValue

Converts to this type from the input type.

impl From<JsError> for JsValue

fn from(error: JsError) -> JsValue

Converts to this type from the input type.

impl From<JsString> for JsValue

fn from(obj: JsString) -> JsValue

Converts to this type from the input type.

impl From<JsValue> for Array

fn from(obj: JsValue) -> Array

Converts to this type from the input type.

impl From<JsValue> for ArrayBuffer

fn from(obj: JsValue) -> ArrayBuffer

Converts to this type from the input type.

impl From<JsValue> for AsyncIterator

fn from(obj: JsValue) -> AsyncIterator

Converts to this type from the input type.

impl From<JsValue> for BigInt

fn from(obj: JsValue) -> BigInt

Converts to this type from the input type.

impl From<JsValue> for BigInt64Array

fn from(obj: JsValue) -> BigInt64Array

Converts to this type from the input type.

impl From<JsValue> for BigUint64Array

fn from(obj: JsValue) -> BigUint64Array

Converts to this type from the input type.

impl From<JsValue> for Boolean

fn from(obj: JsValue) -> Boolean

Converts to this type from the input type.

impl From<JsValue> for CanvasGradient

fn from(obj: JsValue) -> CanvasGradient

Converts to this type from the input type.

impl From<JsValue> for CanvasRenderingContext2d

fn from(obj: JsValue) -> CanvasRenderingContext2d

Converts to this type from the input type.

impl From<JsValue> for Collator

fn from(obj: JsValue) -> Collator

Converts to this type from the input type.

impl From<JsValue> for CompileError

fn from(obj: JsValue) -> CompileError

Converts to this type from the input type.

impl From<JsValue> for DataView

fn from(obj: JsValue) -> DataView

Converts to this type from the input type.

impl From<JsValue> for Date

fn from(obj: JsValue) -> Date

Converts to this type from the input type.

impl From<JsValue> for DateTimeFormat

fn from(obj: JsValue) -> DateTimeFormat

Converts to this type from the input type.

impl From<JsValue> for Document

fn from(obj: JsValue) -> Document

Converts to this type from the input type.

impl From<JsValue> for DomMatrix

fn from(obj: JsValue) -> DomMatrix

Converts to this type from the input type.

impl From<JsValue> for DomMatrixReadOnly

fn from(obj: JsValue) -> DomMatrixReadOnly

Converts to this type from the input type.

impl From<JsValue> for Element

fn from(obj: JsValue) -> Element

Converts to this type from the input type.

impl From<JsValue> for Error

fn from(obj: JsValue) -> Error

Converts to this type from the input type.

impl From<JsValue> for EvalError

fn from(obj: JsValue) -> EvalError

Converts to this type from the input type.

impl From<JsValue> for Event

fn from(obj: JsValue) -> Event

Converts to this type from the input type.

impl From<JsValue> for EventTarget

fn from(obj: JsValue) -> EventTarget

Converts to this type from the input type.

impl From<JsValue> for Exception

fn from(obj: JsValue) -> Exception

Converts to this type from the input type.

impl From<JsValue> for Float32Array

fn from(obj: JsValue) -> Float32Array

Converts to this type from the input type.

impl From<JsValue> for Float64Array

fn from(obj: JsValue) -> Float64Array

Converts to this type from the input type.

impl From<JsValue> for Function

fn from(obj: JsValue) -> Function

Converts to this type from the input type.

impl From<JsValue> for Generator

fn from(obj: JsValue) -> Generator

Converts to this type from the input type.

impl From<JsValue> for Global

fn from(obj: JsValue) -> Global

Converts to this type from the input type.

impl From<JsValue> for HtmlCanvasElement

fn from(obj: JsValue) -> HtmlCanvasElement

Converts to this type from the input type.

impl From<JsValue> for HtmlCollection

fn from(obj: JsValue) -> HtmlCollection

Converts to this type from the input type.

impl From<JsValue> for HtmlElement

fn from(obj: JsValue) -> HtmlElement

Converts to this type from the input type.

impl From<JsValue> for ImageBitmap

fn from(obj: JsValue) -> ImageBitmap

Converts to this type from the input type.

impl From<JsValue> for ImageData

fn from(obj: JsValue) -> ImageData

Converts to this type from the input type.

impl From<JsValue> for Instance

fn from(obj: JsValue) -> Instance

Converts to this type from the input type.

impl From<JsValue> for Int16Array

fn from(obj: JsValue) -> Int16Array

Converts to this type from the input type.

impl From<JsValue> for Int32Array

fn from(obj: JsValue) -> Int32Array

Converts to this type from the input type.

impl From<JsValue> for Int8Array

fn from(obj: JsValue) -> Int8Array

Converts to this type from the input type.

impl From<JsValue> for Iterator

fn from(obj: JsValue) -> Iterator

Converts to this type from the input type.

impl From<JsValue> for IteratorNext

fn from(obj: JsValue) -> IteratorNext

Converts to this type from the input type.

impl From<JsValue> for JsString

fn from(obj: JsValue) -> JsString

Converts to this type from the input type.

impl From<JsValue> for LinkError

fn from(obj: JsValue) -> LinkError

Converts to this type from the input type.

impl From<JsValue> for Location

fn from(obj: JsValue) -> Location

Converts to this type from the input type.

impl From<JsValue> for Map

fn from(obj: JsValue) -> Map

Converts to this type from the input type.

impl From<JsValue> for Memory

fn from(obj: JsValue) -> Memory

Converts to this type from the input type.

impl From<JsValue> for Module

fn from(obj: JsValue) -> Module

Converts to this type from the input type.

impl From<JsValue> for Navigator

fn from(obj: JsValue) -> Navigator

Converts to this type from the input type.

impl From<JsValue> for Node

fn from(obj: JsValue) -> Node

Converts to this type from the input type.

impl From<JsValue> for Number

fn from(obj: JsValue) -> Number

Converts to this type from the input type.

impl From<JsValue> for NumberFormat

fn from(obj: JsValue) -> NumberFormat

Converts to this type from the input type.

impl From<JsValue> for Object

fn from(obj: JsValue) -> Object

Converts to this type from the input type.

impl From<JsValue> for PluralRules

fn from(obj: JsValue) -> PluralRules

Converts to this type from the input type.

impl From<JsValue> for Promise

fn from(obj: JsValue) -> Promise

Converts to this type from the input type.

impl From<JsValue> for Proxy

fn from(obj: JsValue) -> Proxy

Converts to this type from the input type.

impl From<JsValue> for RangeError

fn from(obj: JsValue) -> RangeError

Converts to this type from the input type.

impl From<JsValue> for ReferenceError

fn from(obj: JsValue) -> ReferenceError

Converts to this type from the input type.

impl From<JsValue> for RegExp

fn from(obj: JsValue) -> RegExp

Converts to this type from the input type.

impl From<JsValue> for RelativeTimeFormat

fn from(obj: JsValue) -> RelativeTimeFormat

Converts to this type from the input type.

impl From<JsValue> for Response

fn from(obj: JsValue) -> Response

Converts to this type from the input type.

impl From<JsValue> for RuntimeError

fn from(obj: JsValue) -> RuntimeError

Converts to this type from the input type.

impl From<JsValue> for Set

fn from(obj: JsValue) -> Set

Converts to this type from the input type.

impl From<JsValue> for SharedArrayBuffer

fn from(obj: JsValue) -> SharedArrayBuffer

Converts to this type from the input type.

impl From<JsValue> for Symbol

fn from(obj: JsValue) -> Symbol

Converts to this type from the input type.

impl From<JsValue> for SyntaxError

fn from(obj: JsValue) -> SyntaxError

Converts to this type from the input type.

impl From<JsValue> for Table

fn from(obj: JsValue) -> Table

Converts to this type from the input type.

impl From<JsValue> for Tag

fn from(obj: JsValue) -> Tag

Converts to this type from the input type.

impl From<JsValue> for TextMetrics

fn from(obj: JsValue) -> TextMetrics

Converts to this type from the input type.

impl From<JsValue> for TypeError

fn from(obj: JsValue) -> TypeError

Converts to this type from the input type.

impl From<JsValue> for Uint16Array

fn from(obj: JsValue) -> Uint16Array

Converts to this type from the input type.

impl From<JsValue> for Uint32Array

fn from(obj: JsValue) -> Uint32Array

Converts to this type from the input type.

impl From<JsValue> for Uint8Array

fn from(obj: JsValue) -> Uint8Array

Converts to this type from the input type.

impl From<JsValue> for Uint8ClampedArray

fn from(obj: JsValue) -> Uint8ClampedArray

Converts to this type from the input type.

impl From<JsValue> for UriError

fn from(obj: JsValue) -> UriError

Converts to this type from the input type.

impl From<JsValue> for WeakMap

fn from(obj: JsValue) -> WeakMap

Converts to this type from the input type.

impl From<JsValue> for WeakRef

fn from(obj: JsValue) -> WeakRef

Converts to this type from the input type.

impl From<JsValue> for WeakSet

fn from(obj: JsValue) -> WeakSet

Converts to this type from the input type.

impl From<JsValue> for Window

fn from(obj: JsValue) -> Window

Converts to this type from the input type.

impl From<LinkError> for JsValue

fn from(obj: LinkError) -> JsValue

Converts to this type from the input type.

impl From<Location> for JsValue

fn from(obj: Location) -> JsValue

Converts to this type from the input type.

impl From<Map> for JsValue

fn from(obj: Map) -> JsValue

Converts to this type from the input type.

impl From<MaybeIterator> for JsValue

fn from(obj: MaybeIterator) -> JsValue

Converts to this type from the input type.

impl From<Memory> for JsValue

fn from(obj: Memory) -> JsValue

Converts to this type from the input type.

impl From<MemorySlice> for JsValue

fn from(value: MemorySlice) -> JsValue

Converts to this type from the input type.

impl From<Module> for JsValue

fn from(obj: Module) -> JsValue

Converts to this type from the input type.

impl From<Navigator> for JsValue

fn from(obj: Navigator) -> JsValue

Converts to this type from the input type.

impl From<Node> for JsValue

fn from(obj: Node) -> JsValue

Converts to this type from the input type.

impl<T> From<NonNull<T>> for JsValue

fn from(s: NonNull<T>) -> JsValue

Converts to this type from the input type.

impl From<Number> for JsValue

fn from(obj: Number) -> JsValue

Converts to this type from the input type.

impl From<NumberFormat> for JsValue

fn from(obj: NumberFormat) -> JsValue

Converts to this type from the input type.

impl From<Object> for JsValue

fn from(obj: Object) -> JsValue

Converts to this type from the input type.

impl<T> From<Option<T>> for JsValue

where JsValue: From<T>,

fn from(s: Option<T>) -> JsValue

Converts to this type from the input type.

impl From<PaxChassisWeb> for JsValue

fn from(value: PaxChassisWeb) -> JsValue

Converts to this type from the input type.

impl From<PluralRules> for JsValue

fn from(obj: PluralRules) -> JsValue

Converts to this type from the input type.

impl From<Promise> for JsValue

fn from(obj: Promise) -> JsValue

Converts to this type from the input type.

impl From<Proxy> for JsValue

fn from(obj: Proxy) -> JsValue

Converts to this type from the input type.

impl From<RangeError> for JsValue

fn from(obj: RangeError) -> JsValue

Converts to this type from the input type.

impl From<ReferenceError> for JsValue

fn from(obj: ReferenceError) -> JsValue

Converts to this type from the input type.

impl From<RegExp> for JsValue

fn from(obj: RegExp) -> JsValue

Converts to this type from the input type.

impl From<RelativeTimeFormat> for JsValue

fn from(obj: RelativeTimeFormat) -> JsValue

Converts to this type from the input type.

impl From<Response> for JsValue

fn from(obj: Response) -> JsValue

Converts to this type from the input type.

impl From<ResponseType> for JsValue

fn from(val: ResponseType) -> JsValue

Converts to this type from the input type.

impl From<RuntimeError> for JsValue

fn from(obj: RuntimeError) -> JsValue

Converts to this type from the input type.

impl From<Set> for JsValue

fn from(obj: Set) -> JsValue

Converts to this type from the input type.

impl From<SharedArrayBuffer> for JsValue

fn from(obj: SharedArrayBuffer) -> JsValue

Converts to this type from the input type.

impl From<String> for JsValue

fn from(s: String) -> JsValue

Converts to this type from the input type.

impl From<Symbol> for JsValue

fn from(obj: Symbol) -> JsValue

Converts to this type from the input type.

impl From<SyntaxError> for JsValue

fn from(obj: SyntaxError) -> JsValue

Converts to this type from the input type.

impl From<Table> for JsValue

fn from(obj: Table) -> JsValue

Converts to this type from the input type.

impl From<Tag> for JsValue

fn from(obj: Tag) -> JsValue

Converts to this type from the input type.

impl From<TextMetrics> for JsValue

fn from(obj: TextMetrics) -> JsValue

Converts to this type from the input type.

impl From<TypeError> for JsValue

fn from(obj: TypeError) -> JsValue

Converts to this type from the input type.

impl From<Uint16Array> for JsValue

fn from(obj: Uint16Array) -> JsValue

Converts to this type from the input type.

impl From<Uint32Array> for JsValue

fn from(obj: Uint32Array) -> JsValue

Converts to this type from the input type.

impl From<Uint8Array> for JsValue

fn from(obj: Uint8Array) -> JsValue

Converts to this type from the input type.

impl From<Uint8ClampedArray> for JsValue

fn from(obj: Uint8ClampedArray) -> JsValue

Converts to this type from the input type.

impl From<UriError> for JsValue

fn from(obj: UriError) -> JsValue

Converts to this type from the input type.

impl<T> From<Vec<T>> for JsValue

where T: VectorIntoWasmAbi,

fn from(vector: Vec<T>) -> JsValue

Converts to this type from the input type.

impl From<WeakMap> for JsValue

fn from(obj: WeakMap) -> JsValue

Converts to this type from the input type.

impl From<WeakRef> for JsValue

fn from(obj: WeakRef) -> JsValue

Converts to this type from the input type.

impl From<WeakSet> for JsValue

fn from(obj: WeakSet) -> JsValue

Converts to this type from the input type.

impl From<Window> for JsValue

fn from(obj: Window) -> JsValue

Converts to this type from the input type.

impl From<bool> for JsValue

fn from(s: bool) -> JsValue

Converts to this type from the input type.

impl From<f32> for JsValue

fn from(n: f32) -> JsValue

Converts to this type from the input type.

impl From<f64> for JsValue

fn from(n: f64) -> JsValue

Converts to this type from the input type.

impl From<i128> for JsValue

fn from(arg: i128) -> JsValue

Converts to this type from the input type.

impl From<i16> for JsValue

fn from(n: i16) -> JsValue

Converts to this type from the input type.

impl From<i32> for JsValue

fn from(n: i32) -> JsValue

Converts to this type from the input type.

impl From<i64> for JsValue

fn from(arg: i64) -> JsValue

Converts to this type from the input type.

impl From<i8> for JsValue

fn from(n: i8) -> JsValue

Converts to this type from the input type.

impl From<isize> for JsValue

fn from(n: isize) -> JsValue

Converts to this type from the input type.

impl From<u128> for JsValue

fn from(arg: u128) -> JsValue

Converts to this type from the input type.

impl From<u16> for JsValue

fn from(n: u16) -> JsValue

Converts to this type from the input type.

impl From<u32> for JsValue

fn from(n: u32) -> JsValue

Converts to this type from the input type.

impl From<u64> for JsValue

fn from(arg: u64) -> JsValue

Converts to this type from the input type.

impl From<u8> for JsValue

fn from(n: u8) -> JsValue

Converts to this type from the input type.

impl From<usize> for JsValue

fn from(n: usize) -> JsValue

Converts to this type from the input type.

impl FromWasmAbi for JsValue

type Abi = u32

The Wasm ABI type that this converts from when coming back out from the ABI boundary.

unsafe fn from_abi(js: u32) -> JsValue

Recover a Self from Self::Abi.

impl IntoWasmAbi for &JsValue

type Abi = u32

The Wasm ABI type that this converts into when crossing the ABI boundary.

fn into_abi(self) -> u32

Convert self into Self::Abi so that it can be sent across the wasm ABI boundary.

impl IntoWasmAbi for JsValue

type Abi = u32

The Wasm ABI type that this converts into when crossing the ABI boundary.

fn into_abi(self) -> u32

Convert self into Self::Abi so that it can be sent across the wasm ABI boundary.

impl JsCast for JsValue

fn instanceof(_val: &JsValue) -> bool

Performs a dynamic instanceof check to see whether the JsValue provided is an instance of this type.

fn unchecked_from_js(val: JsValue) -> JsValue

Performs a zero-cost unchecked conversion from a JsValue into an instance of Self

fn unchecked_from_js_ref(val: &JsValue) -> &JsValue

Performs a zero-cost unchecked conversion from a &JsValue into an instance of &Self.

fn has_type<T>(&self) -> bool

where T: JsCast,

Test whether this JS value has a type T.

fn dyn_into<T>(self) -> Result<T, Self>

where T: JsCast,

Performs a dynamic cast (checked at runtime) of this value into the target type T.

fn dyn_ref<T>(&self) -> Option<&T>

where T: JsCast,

Performs a dynamic cast (checked at runtime) of this value into the target type T.

fn unchecked_into<T>(self) -> T

where T: JsCast,

Performs a zero-cost unchecked cast into the specified type.

fn unchecked_ref<T>(&self) -> &T

where T: JsCast,

Performs a zero-cost unchecked cast into a reference to the specified type.

fn is_instance_of<T>(&self) -> bool

where T: JsCast,

Test whether this JS value is an instance of the type T.

fn is_type_of(val: &JsValue) -> bool

Performs a dynamic check to see whether the JsValue provided is a value of this type.

impl LongRefFromWasmAbi for JsValue

type Abi = u32

Same as RefFromWasmAbi::Abi

type Anchor = JsValue

Same as RefFromWasmAbi::Anchor

unsafe fn long_ref_from_abi(js: u32) -> <JsValue as LongRefFromWasmAbi>::Anchor

Same as RefFromWasmAbi::ref_from_abi

impl Mul<&JsValue> for JsValue

type Output = <&'static JsValue as Mul>::Output

The resulting type after applying the * operator.

fn mul(self, other: &JsValue) -> <&'static JsValue as Mul>::Output

Performs the * operation.

impl<'a> Mul<JsValue> for &'a JsValue

type Output = <&'static JsValue as Mul>::Output

The resulting type after applying the * operator.

fn mul(self, other: JsValue) -> <&'static JsValue as Mul>::Output

Performs the * operation.

impl Mul for &JsValue

fn mul(self, rhs: &JsValue) -> <&JsValue as Mul>::Output

Applies the binary * JS operator on two JsValues.

MDN documentation

type Output = JsValue

The resulting type after applying the * operator.

impl Mul for JsValue

type Output = <&'static JsValue as Mul>::Output

The resulting type after applying the * operator.

fn mul(self, other: JsValue) -> <&'static JsValue as Mul>::Output

Performs the * operation.

impl Neg for &JsValue

fn neg(self) -> <&JsValue as Neg>::Output

Applies the unary - JS operator on a JsValue.

MDN documentation

type Output = JsValue

The resulting type after applying the - operator.

impl Neg for JsValue

type Output = <&'static JsValue as Neg>::Output

The resulting type after applying the - operator.

fn neg(self) -> <&'static JsValue as Neg>::Output

Performs the unary - operation.

impl Not for &JsValue

fn not(self) -> <&JsValue as Not>::Output

Applies the ! JS operator on a JsValue.

MDN documentation

type Output = bool

The resulting type after applying the ! operator.

impl Not for JsValue

type Output = <&'static JsValue as Not>::Output

The resulting type after applying the ! operator.

fn not(self) -> <&'static JsValue as Not>::Output

Performs the unary ! operation.

impl OptionFromWasmAbi for JsValue

fn is_none(js: &u32) -> bool

Tests whether the argument is a “none” instance. If so it will be deserialized as None, and otherwise it will be passed to FromWasmAbi.

impl OptionIntoWasmAbi for JsValue

fn none() -> u32

Returns an ABI instance indicating “none”, which JS will interpret as the None branch of this option.

impl<'a> PartialEq<&'a String> for JsValue

fn eq(&self, other: &&'a String) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> PartialEq<&'a str> for JsValue

fn eq(&self, other: &&'a str) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<String> for JsValue

fn eq(&self, other: &String) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<bool> for JsValue

fn eq(&self, other: &bool) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<f32> for JsValue

fn eq(&self, other: &f32) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<f64> for JsValue

fn eq(&self, other: &f64) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<i128> for JsValue

fn eq(&self, other: &i128) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<i16> for JsValue

fn eq(&self, other: &i16) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<i32> for JsValue

fn eq(&self, other: &i32) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<i64> for JsValue

fn eq(&self, other: &i64) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<i8> for JsValue

fn eq(&self, other: &i8) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<isize> for JsValue

fn eq(&self, other: &isize) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<str> for JsValue

fn eq(&self, other: &str) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<u128> for JsValue

fn eq(&self, other: &u128) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<u16> for JsValue

fn eq(&self, other: &u16) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<u32> for JsValue

fn eq(&self, other: &u32) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<u64> for JsValue

fn eq(&self, other: &u64) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<u8> for JsValue

fn eq(&self, other: &u8) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<usize> for JsValue

fn eq(&self, other: &usize) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq for JsValue

fn eq(&self, other: &JsValue) -> bool

Compares two JsValues for equality, using the === operator in JS.

MDN documentation

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl RefFromWasmAbi for JsValue

type Abi = u32

The Wasm ABI type references to Self are recovered from.

type Anchor = ManuallyDrop<JsValue>

The type that holds the reference to Self for the duration of the invocation of the function that has an &Self parameter. This is required to ensure that the lifetimes don’t persist beyond one function call, and so that they remain anonymous.

unsafe fn ref_from_abi(js: u32) -> <JsValue as RefFromWasmAbi>::Anchor

Recover a Self::Anchor from Self::Abi.

impl Rem<&JsValue> for JsValue

type Output = <&'static JsValue as Rem>::Output

The resulting type after applying the % operator.

fn rem(self, other: &JsValue) -> <&'static JsValue as Rem>::Output

Performs the % operation.

impl<'a> Rem<JsValue> for &'a JsValue

type Output = <&'static JsValue as Rem>::Output

The resulting type after applying the % operator.

fn rem(self, other: JsValue) -> <&'static JsValue as Rem>::Output

Performs the % operation.

impl Rem for &JsValue

fn rem(self, rhs: &JsValue) -> <&JsValue as Rem>::Output

Applies the binary % JS operator on two JsValues.

MDN documentation

type Output = JsValue

The resulting type after applying the % operator.

impl Rem for JsValue

type Output = <&'static JsValue as Rem>::Output

The resulting type after applying the % operator.

fn rem(self, other: JsValue) -> <&'static JsValue as Rem>::Output

Performs the % operation.

impl Shl<&JsValue> for JsValue

type Output = <&'static JsValue as Shl>::Output

The resulting type after applying the << operator.

fn shl(self, other: &JsValue) -> <&'static JsValue as Shl>::Output

Performs the << operation.

impl<'a> Shl<JsValue> for &'a JsValue

type Output = <&'static JsValue as Shl>::Output

The resulting type after applying the << operator.

fn shl(self, other: JsValue) -> <&'static JsValue as Shl>::Output

Performs the << operation.

impl Shl for &JsValue

fn shl(self, rhs: &JsValue) -> <&JsValue as Shl>::Output

Applies the binary << JS operator on two JsValues.

MDN documentation

type Output = JsValue

The resulting type after applying the << operator.

impl Shl for JsValue

type Output = <&'static JsValue as Shl>::Output

The resulting type after applying the << operator.

fn shl(self, other: JsValue) -> <&'static JsValue as Shl>::Output

Performs the << operation.

impl Shr<&JsValue> for JsValue

type Output = <&'static JsValue as Shr>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &JsValue) -> <&'static JsValue as Shr>::Output

Performs the >> operation.

impl<'a> Shr<JsValue> for &'a JsValue

type Output = <&'static JsValue as Shr>::Output

The resulting type after applying the >> operator.

fn shr(self, other: JsValue) -> <&'static JsValue as Shr>::Output

Performs the >> operation.

impl Shr for &JsValue

fn shr(self, rhs: &JsValue) -> <&JsValue as Shr>::Output

Applies the binary >> JS operator on two JsValues.

MDN documentation

type Output = JsValue

The resulting type after applying the >> operator.

impl Shr for JsValue

type Output = <&'static JsValue as Shr>::Output

The resulting type after applying the >> operator.

fn shr(self, other: JsValue) -> <&'static JsValue as Shr>::Output

Performs the >> operation.

impl Sub<&JsValue> for JsValue

type Output = <&'static JsValue as Sub>::Output

The resulting type after applying the - operator.

fn sub(self, other: &JsValue) -> <&'static JsValue as Sub>::Output

Performs the - operation.

impl<'a> Sub<JsValue> for &'a JsValue

type Output = <&'static JsValue as Sub>::Output

The resulting type after applying the - operator.

fn sub(self, other: JsValue) -> <&'static JsValue as Sub>::Output

Performs the - operation.

impl Sub for &JsValue

fn sub(self, rhs: &JsValue) -> <&JsValue as Sub>::Output

Applies the binary - JS operator on two JsValues.

MDN documentation

type Output = JsValue

The resulting type after applying the - operator.

impl Sub for JsValue

type Output = <&'static JsValue as Sub>::Output

The resulting type after applying the - operator.

fn sub(self, other: JsValue) -> <&'static JsValue as Sub>::Output

Performs the - operation.

impl TryFrom<&JsValue> for f64

fn try_from(val: &JsValue) -> Result<f64, <f64 as TryFrom<&JsValue>>::Error>

Applies the unary + JS operator on a JsValue. Returns the numeric result on success, or the JS error value on error.

MDN documentation

type Error = JsValue

The type returned in the event of a conversion error.

impl TryFrom<JsValue> for String

type Error = JsValue

The type returned in the event of a conversion error.

fn try_from( value: JsValue, ) -> Result<String, <String as TryFrom<JsValue>>::Error>

Performs the conversion.

impl TryFrom<JsValue> for f64

fn try_from(val: JsValue) -> Result<f64, <f64 as TryFrom<JsValue>>::Error>

Applies the unary + JS operator on a JsValue. Returns the numeric result on success, or the JS error value on error.

MDN documentation

type Error = JsValue

The type returned in the event of a conversion error.

impl TryFrom<JsValue> for i128

type Error = JsValue

The type returned in the event of a conversion error.

fn try_from(v: JsValue) -> Result<i128, JsValue>

Performs the conversion.

impl TryFrom<JsValue> for i64

type Error = JsValue

The type returned in the event of a conversion error.

fn try_from(v: JsValue) -> Result<i64, JsValue>

Performs the conversion.

impl TryFrom<JsValue> for u128

type Error = JsValue

The type returned in the event of a conversion error.

fn try_from(v: JsValue) -> Result<u128, JsValue>

Performs the conversion.

impl TryFrom<JsValue> for u64

type Error = JsValue

The type returned in the event of a conversion error.

fn try_from(v: JsValue) -> Result<u64, JsValue>

Performs the conversion.