Struct js_sys::Set [−][src]
#[repr(transparent)]pub struct Set { /* fields omitted */ }
Implementations
impl Set
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impl Set
[src]impl Set
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impl Set
[src]pub fn entries(&self) -> Iterator
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pub fn entries(&self) -> Iterator
[src]The entries()
method returns a new Iterator object that contains an
array of [value, value] for each element in the Set object, in insertion
order. For Set objects there is no key like in Map objects. However, to
keep the API similar to the Map object, each entry has the same value
for its key and value here, so that an array [value, value] is returned.
impl Set
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impl Set
[src]impl Set
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impl Set
[src]Methods from Deref<Target = Object>
pub fn constructor(&self) -> Function
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pub fn constructor(&self) -> Function
[src]The constructor property returns a reference to the Object
constructor
function that created the instance object.
pub fn has_own_property(&self, property: &JsValue) -> bool
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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).
pub fn is_prototype_of(&self, value: &JsValue) -> bool
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pub fn is_prototype_of(&self, value: &JsValue) -> bool
[src]The isPrototypeOf()
method checks if an object exists in another
object’s prototype chain.
pub fn property_is_enumerable(&self, property: &JsValue) -> bool
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pub fn property_is_enumerable(&self, property: &JsValue) -> bool
[src]The propertyIsEnumerable()
method returns a Boolean indicating
whether the specified property is enumerable.
pub fn to_locale_string(&self) -> JsString
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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.
Methods from Deref<Target = JsValue>
pub const NULL: JsValue
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pub const UNDEFINED: JsValue
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pub const TRUE: JsValue
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pub const FALSE: JsValue
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pub fn as_f64(&self) -> Option<f64>
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pub fn as_f64(&self) -> Option<f64>
[src]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 as_string(&self) -> Option<String>
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pub fn as_string(&self) -> Option<String>
[src]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>
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pub fn as_bool(&self) -> Option<bool>
[src]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_undefined(&self) -> bool
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pub fn is_undefined(&self) -> bool
[src]Tests whether this JS value is undefined
pub fn is_function(&self) -> bool
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pub fn is_function(&self) -> bool
[src]Tests whether the type of this JS value is function
.
Trait Implementations
impl FromWasmAbi for Set
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impl FromWasmAbi for Set
[src]impl IntoWasmAbi for Set
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impl IntoWasmAbi for Set
[src]impl<'a> IntoWasmAbi for &'a Set
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impl<'a> IntoWasmAbi for &'a Set
[src]impl JsCast for Set
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impl JsCast for Set
[src]fn instanceof(val: &JsValue) -> bool
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fn instanceof(val: &JsValue) -> bool
[src]Performs a dynamic instanceof
check to see whether the JsValue
provided is an instance of this type. Read more
fn unchecked_from_js(val: JsValue) -> Self
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fn unchecked_from_js(val: JsValue) -> Self
[src]Performs a zero-cost unchecked conversion from a JsValue
into an
instance of Self
Read more
fn unchecked_from_js_ref(val: &JsValue) -> &Self
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fn unchecked_from_js_ref(val: &JsValue) -> &Self
[src]Performs a zero-cost unchecked conversion from a &JsValue
into an
instance of &Self
. Read more
fn has_type<T>(&self) -> bool where
T: JsCast,
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fn has_type<T>(&self) -> bool where
T: JsCast,
[src]Test whether this JS value has a type T
. Read more
fn dyn_into<T>(self) -> Result<T, Self> where
T: JsCast,
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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,
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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,
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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,
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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
fn is_instance_of<T>(&self) -> bool where
T: JsCast,
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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 is_type_of(val: &JsValue) -> bool
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fn is_type_of(val: &JsValue) -> bool
[src]Performs a dynamic check to see whether the JsValue
provided
is a value of this type. Read more
impl OptionFromWasmAbi for Set
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impl OptionFromWasmAbi for Set
[src]impl OptionIntoWasmAbi for Set
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impl OptionIntoWasmAbi for Set
[src]impl<'a> OptionIntoWasmAbi for &'a Set
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impl<'a> OptionIntoWasmAbi for &'a Set
[src]impl RefFromWasmAbi for Set
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impl RefFromWasmAbi for Set
[src]type Abi = <JsValue as RefFromWasmAbi>::Abi
type Abi = <JsValue as RefFromWasmAbi>::Abi
The wasm ABI type references to Self
are recovered from.
type Anchor = ManuallyDrop<Set>
type Anchor = ManuallyDrop<Set>
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
unsafe fn ref_from_abi(js: Self::Abi) -> Self::Anchor
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unsafe fn ref_from_abi(js: Self::Abi) -> Self::Anchor
[src]Recover a Self::Anchor
from Self::Abi
. Read more
impl Eq for Set
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impl StructuralEq for Set
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impl StructuralPartialEq for Set
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Auto Trait Implementations
impl RefUnwindSafe for Set
impl !Send for Set
impl !Sync for Set
impl Unpin for Set
impl UnwindSafe for Set
Blanket Implementations
impl<T> BorrowMut<T> for T where
T: ?Sized,
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impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]pub fn borrow_mut(&mut self) -> &mut T
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pub fn borrow_mut(&mut self) -> &mut T
[src]Mutably borrows from an owned value. Read more
impl<T> ReturnWasmAbi for T where
T: IntoWasmAbi,
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impl<T> ReturnWasmAbi for T where
T: IntoWasmAbi,
[src]type Abi = <T as IntoWasmAbi>::Abi
type Abi = <T as IntoWasmAbi>::Abi
Same as IntoWasmAbi::Abi
pub fn return_abi(self) -> <T as ReturnWasmAbi>::Abi
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pub fn return_abi(self) -> <T as ReturnWasmAbi>::Abi
[src]Same as IntoWasmAbi::into_abi
, except that it may throw and never
return in the case of Err
. Read more
impl<T> ToOwned for T where
T: Clone,
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impl<T> ToOwned for T where
T: Clone,
[src]type Owned = T
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn to_owned(&self) -> T
[src]Creates owned data from borrowed data, usually by cloning. Read more
pub fn clone_into(&self, target: &mut T)
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pub fn clone_into(&self, target: &mut T)
[src]🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more