Struct js_sys::IteratorNext

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

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The result of calling next() on a JS iterator.

MDN documentation

Implementations

impl IteratorNext[−]

pub fn done(&self) -> bool[−]

Has the value true if the iterator is past the end of the iterated sequence. In this case value optionally specifies the return value of the iterator.

Has the value false if the iterator was able to produce the next value in the sequence. This is equivalent of not specifying the done property altogether.

impl IteratorNext[−]

pub fn value(&self) -> JsValue[−]

Any JavaScript value returned by the iterator. Can be omitted when done is true.

Methods from Deref<Target = Object>

pub fn constructor(&self) -> Function[−]

The constructor property returns a reference to the Object constructor function that created the instance object.

MDN documentation

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

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[−]

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[−]

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

MDN documentation

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

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[−]

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

MDN documentation

pub fn value_of(&self) -> Object[−]

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

MDN documentation

Trait Implementations

impl AsRef<IteratorNext> for IteratorNext[+]

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fn as_ref(&self) -> &IteratorNext[−]

Performs the conversion.

impl AsRef<JsValue> for IteratorNext[+]

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fn as_ref(&self) -> &JsValue[−]

Performs the conversion.

impl AsRef<Object> for IteratorNext[+]

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fn as_ref(&self) -> &Object[−]

Performs the conversion.

impl Clone for IteratorNext[+]

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fn clone(&self) -> IteratorNext[−]

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for IteratorNext[+]

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

Formats the value using the given formatter.

impl Deref for IteratorNext[+]

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type Target = Object

The resulting type after dereferencing.

fn deref(&self) -> &Object[−]

Dereferences the value.

impl Eq for IteratorNext

impl From<IteratorNext> for JsValue[+]

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fn from(obj: IteratorNext) -> JsValue[−]

Performs the conversion.

impl From<IteratorNext> for Object[+]

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fn from(obj: IteratorNext) -> Object[−]

Performs the conversion.

impl From<JsValue> for IteratorNext[+]

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fn from(obj: JsValue) -> IteratorNext[−]

Performs the conversion.

impl FromWasmAbi for IteratorNext[+]

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type Abi = <JsValue as FromWasmAbi>::Abi

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

unsafe fn from_abi(js: Self::Abi) -> Self[−]

Recover a Self from Self::Abi.

impl IntoWasmAbi for IteratorNext[+]

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type Abi = <JsValue as IntoWasmAbi>::Abi

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

fn into_abi(self) -> Self::Abi[−]

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

impl<'a> IntoWasmAbi for &'a IteratorNext[+]

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

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

fn into_abi(self) -> Self::Abi[−]

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

impl JsCast for IteratorNext[+]

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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) -> Self[−]

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

fn unchecked_from_js_ref(val: &JsValue) -> &Self[−]

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 OptionFromWasmAbi for IteratorNext[+]

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fn is_none(abi: &Self::Abi) -> 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 IteratorNext[+]

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fn none() -> Self::Abi[−]

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

impl<'a> OptionIntoWasmAbi for &'a IteratorNext[+]

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fn none() -> Self::Abi[−]

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

impl PartialEq<IteratorNext> for IteratorNext[+]

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fn eq(&self, other: &IteratorNext) -> bool[−]

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &IteratorNext) -> bool[−]

This method tests for !=.

impl RefFromWasmAbi for IteratorNext[+]

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type Abi = <JsValue as RefFromWasmAbi>::Abi

The wasm ABI type references to Self are recovered from.

type Anchor = ManuallyDrop<IteratorNext>

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: Self::Abi) -> Self::Anchor[−]

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

impl StructuralEq for IteratorNext

impl StructuralPartialEq for IteratorNext

impl WasmDescribe for IteratorNext[+]

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fn describe()