TypedArray.prototype.forEach()
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2016.
The forEach() method of TypedArray instances executes a provided function once for each typed array element. This method has the same algorithm as Array.prototype.forEach().
Try it
Syntax
forEach(callbackFn)
forEach(callbackFn, thisArg)
Parameters
callbackFn-
A function to execute for each element in the typed array. Its return value is discarded. The function is called with the following arguments:
thisArgOptional-
A value to use as
thiswhen executingcallbackFn. See iterative methods.
Return value
None (undefined).
Description
See Array.prototype.forEach() for more details. This method is not generic and can only be called on typed array instances.
Examples
Logging the contents of a typed array
The following code logs a line for each element in a typed array:
function logArrayElements(element, index, array) {
console.log(`a[${index}] = ${element}`);
}
new Uint8Array([0, 1, 2, 3]).forEach(logArrayElements);
// Logs:
// a[0] = 0
// a[1] = 1
// a[2] = 2
// a[3] = 3
Specifications
| Specification |
|---|
| ECMAScript Language Specification # sec-%typedarray%.prototype.foreach |
Browser compatibility
BCD tables only load in the browser
See also
- Polyfill of
TypedArray.prototype.forEachincore-js - JavaScript typed arrays guide
TypedArrayTypedArray.prototype.find()TypedArray.prototype.map()TypedArray.prototype.filter()TypedArray.prototype.every()TypedArray.prototype.some()Array.prototype.forEach()Map.prototype.forEach()Set.prototype.forEach()