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Showing content from http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Int8Array/Int8Array below:

Int8Array() constructor - JavaScript | MDN

Int8Array() constructor

Baseline Widely available

The Int8Array() constructor creates Int8Array objects. The contents are initialized to 0 unless initialization data is explicitly provided.

Syntax
new Int8Array()
new Int8Array(length)
new Int8Array(typedArray)
new Int8Array(object)

new Int8Array(buffer)
new Int8Array(buffer, byteOffset)
new Int8Array(buffer, byteOffset, length)

Note: Int8Array() can only be constructed with new. Attempting to call it without new throws a TypeError.

Parameters

See TypedArray.

Exceptions

See TypedArray.

Examples Different ways to create an Int8Array
// From a length
const int8 = new Int8Array(2);
int8[0] = 42;
console.log(int8[0]); // 42
console.log(int8.length); // 2
console.log(int8.BYTES_PER_ELEMENT); // 1

// From an array
const x = new Int8Array([21, 31]);
console.log(x[1]); // 31

// From another TypedArray
const y = new Int8Array(x);
console.log(y[0]); // 21

// From an ArrayBuffer
const buffer = new ArrayBuffer(8);
const z = new Int8Array(buffer, 1, 4);
console.log(z.byteOffset); // 1

// From an iterable
const iterable = (function* () {
  yield* [1, 2, 3];
})();
const int8FromIterable = new Int8Array(iterable);
console.log(int8FromIterable);
// Int8Array [1, 2, 3]
Specifications Browser compatibility See also

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