Baseline Widely available
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().
const uint8 = new Uint8Array([10, 20, 30]);
uint8.forEach((element) => console.log(element));
// Expected output: 10
// Expected output: 20
// Expected output: 30
forEach(callbackFn)
forEach(callbackFn, thisArg)
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:
element
The current element being processed in the typed array.
index
The index of the current element being processed in the typed array.
array
The typed array forEach() was called upon.
thisArg Optional
A value to use as this when executing callbackFn. See iterative methods.
None (undefined).
See Array.prototype.forEach() for more details. This method is not generic and can only be called on typed array instances.
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
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