How to just get the first two values in an array in javaScirpt code example

Example 1: javascript how to get subarray

const ar  = [1, 2, 3, 4, 5];

// slice from 1..3 - add 1 as the end index is not included

const ar2 = ar.slice(1, 3 + 1);

console.log(ar2);

Example 2: array index javascript show only first 2 elements

array.slice(0, n);