how to get sub array in js code example

Example 1: js subarray

let subArray = array.slice(startIndex, endIndex)
// ['a', 'b', 'c'].slice(0, 2) === ['a', 'b']

Example 2: 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);