TypedArray.prototype.keys()

The keys() method returns a new array iterator object that contains the keys for each index in the array.

Syntax

keys()

Return value

A new array iterator object.

Examples

Iteration using for...of loop

var arr = new Uint8Array([10, 20, 30, 40, 50]);
var eArray = arr.keys();
// your browser must support for..of loop
// and let-scoped variables in for loops
for (let n of eArray) {
  console.log(n);
}

Alternative iteration

var arr = new Uint8Array([10, 20, 30, 40, 50]);
var eArr = arr.keys();
console.log(eArr.next().value); // 0
console.log(eArr.next().value); // 1
console.log(eArr.next().value); // 2
console.log(eArr.next().value); // 3
console.log(eArr.next().value); // 4

Specifications

Specification
ECMAScript Language Specification (ECMAScript)
# sec-%typedarray%.prototype.keys

Browser compatibility

BCD tables only load in the browser

See also