ArrayBuffer.prototype.slice()

// Create an ArrayBuffer with a size in bytes
const buffer = new ArrayBuffer(16);
const int32View = new Int32Array(buffer);
// Produces Int32Array [0, 0, 0, 0]

int32View[1] = 42;
const sliced = new Int32Array(buffer.slice(4, 12));
// Produces Int32Array [42, 0]

console.log(sliced[0]);
// Expected output: 42

    arraybuffer.slice(begin[, end])

const buf1 = new ArrayBuffer(8);
const buf2 = buf1.slice(0);