[][src]Struct js_sys::WeakMap

#[repr(transparent)]
pub struct WeakMap { /* fields omitted */ }

Methods

impl WeakMap[src]

pub fn new() -> WeakMap[src]

The WeakMap object is a collection of key/value pairs in which the keys are weakly referenced. The keys must be objects and the values can be arbitrary values.

MDN documentation

impl WeakMap[src]

pub fn set(&self, key: &Object, value: &JsValue) -> WeakMap[src]

The set() method sets the value for the key in the WeakMap object. Returns the WeakMap object.

MDN documentation

impl WeakMap[src]

pub fn get(&self, key: &Object) -> JsValue[src]

The get() method returns a specified by key element from a WeakMap object.

MDN documentation

impl WeakMap[src]

pub fn has(&self, key: &Object) -> bool[src]

The has() method returns a boolean indicating whether an element with the specified key exists in the WeakMap object or not.

MDN documentation

impl WeakMap[src]

pub fn delete(&self, key: &Object) -> bool[src]

The delete() method removes the specified element from a WeakMap object.

MDN documentation

Methods from Deref<Target = Object>

pub fn has_own_property(&self, property: &JsValue) -> bool[src]

The hasOwnProperty() method returns a boolean indicating whether the object has the specified property as its own property (as opposed to inheriting it).

MDN documentation

pub fn is_prototype_of(&self, value: &JsValue) -> bool[src]

The isPrototypeOf() method checks if an object exists in another object's prototype chain.

MDN documentation

pub fn property_is_enumerable(&self, property: &JsValue) -> bool[src]

The propertyIsEnumerable() method returns a Boolean indicating whether the specified property is enumerable.

MDN documentation

pub fn to_locale_string(&self) -> JsString[src]

The toLocaleString() method returns a string representing the object. This method is meant to be overridden by derived objects for locale-specific purposes.

MDN documentation

pub fn to_string(&self) -> JsString[src]

The toString() method returns a string representing the object.

MDN documentation

pub fn value_of(&self) -> Object[src]

The valueOf() method returns the primitive value of the specified object.

MDN documentation

Trait Implementations

impl AsRef<JsValue> for WeakMap[src]

impl AsRef<Object> for WeakMap[src]

impl From<JsValue> for WeakMap[src]

impl From<WeakMap> for JsValue[src]

impl From<WeakMap> for Object[src]

impl Clone for WeakMap[src]

fn clone_from(&mut self, source: &Self)
1.0.0
[src]

Performs copy-assignment from source. Read more

impl Debug for WeakMap[src]

impl Deref for WeakMap[src]

type Target = Object

The resulting type after dereferencing.

impl FromWasmAbi for WeakMap[src]

type Abi = <JsValue as FromWasmAbi>::Abi

The wasm ABI type that this converts from when coming back out from the ABI boundary. Read more

impl IntoWasmAbi for WeakMap[src]

type Abi = <JsValue as IntoWasmAbi>::Abi

The wasm ABI type that this converts into when crossing the ABI boundary. Read more

impl<'a> IntoWasmAbi for &'a WeakMap[src]

type Abi = <&'a JsValue as IntoWasmAbi>::Abi

The wasm ABI type that this converts into when crossing the ABI boundary. Read more

impl WasmDescribe for WeakMap[src]

impl OptionFromWasmAbi for WeakMap[src]

impl OptionIntoWasmAbi for WeakMap[src]

impl<'a> OptionIntoWasmAbi for &'a WeakMap[src]

impl RefFromWasmAbi for WeakMap[src]

type Abi = <JsValue as RefFromWasmAbi>::Abi

The wasm ABI type references to Self are recovered from.

type Anchor = ManuallyDrop<WeakMap>

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. Read more

impl JsCast for WeakMap[src]

fn is_instance_of<T>(&self) -> bool where
    T: JsCast
[src]

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

fn dyn_into<T>(self) -> Result<T, Self> where
    T: JsCast
[src]

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

fn dyn_ref<T>(&self) -> Option<&T> where
    T: JsCast
[src]

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

fn unchecked_into<T>(self) -> T where
    T: JsCast
[src]

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

fn unchecked_ref<T>(&self) -> &T where
    T: JsCast
[src]

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

Auto Trait Implementations

impl !Send for WeakMap

impl !Sync for WeakMap

Blanket Implementations

impl<T, U> Into for T where
    U: From<T>, 
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

impl<T> From for T[src]

impl<T, U> TryFrom for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized
[src]

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> BorrowMut for T where
    T: ?Sized
[src]

impl<T, U> TryInto for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> ReturnWasmAbi for T where
    T: IntoWasmAbi
[src]

type Abi = <T as IntoWasmAbi>::Abi

Same as IntoWasmAbi::Abi