pub struct NodeFilter { /* private fields */ }Expand description
The NodeFilter dictionary.
This API requires the following crate features to be activated: NodeFilter
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Get the acceptNode field of this object.
This API requires the following crate features to be activated: NodeFilter
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The constructor property returns a reference to the Object constructor
function that created the instance object.
Source 👎Deprecated: Use Object::hasOwn instead.
Object::hasOwn instead.The hasOwnProperty() method returns a boolean indicating whether the
object has the specified property as its own property (as opposed to
inheriting it).
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The isPrototypeOf() method checks if an object exists in another
object’s prototype chain.
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The propertyIsEnumerable() method returns a Boolean indicating
whether the specified property is enumerable.
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The toLocaleString() method returns a string representing the object.
This method is meant to be overridden by derived objects for
locale-specific purposes.
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The valueOf() method returns the primitive value of the
specified object.
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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.
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Tests whether this JS value is a JS string.
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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.
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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.
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Tests whether this JS value is null
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Tests whether this JS value is undefined
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Tests whether this JS value is null or undefined
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Tests whether the type of this JS value is symbol
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Tests whether typeof self == "object" && self !== null.
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Tests whether this JS value is an instance of Array.
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Tests whether the type of this JS value is function.
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Tests whether the type of this JS value is bigint.
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Applies the binary / JS operator on two JsValues, catching and returning any RangeError thrown.