TypedArray.prototype.includes()

The includes() method determines whether a typed array includes a certain element, returning true or false as appropriate. This method has the same algorithm as Array.prototype.includes(). TypedArray is one of the typed array types here.

Syntax

typedarray.includes(searchElement[, fromIndex]);

Parameters

searchElement
The element to search for.
fromIndex
Optional. The position in this array at which to begin searching for searchElement; defaults to 0.

Return value

A Boolean.

Examples

Using includes

var uint8 = new Uint8Array([1,2,3]);
uint8.includes(2);     // true
uint8.includes(4);     // false
uint8.includes(3, 3);  // false

// NaN handling (only true for Float32 and Float64)
new Uint8Array([NaN]).includes(NaN); // false, since the NaN passed to the constructor gets converted to 0
new Float32Array([NaN]).includes(NaN); // true;
new Float64Array([NaN]).includes(NaN); // true;

Specifications

Specification
ECMAScript (ECMA-262)
The definition of 'TypedArray.prototype.includes' in that specification.

Browser compatibility

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See also