add array in array in javascript code example
Example 1: how to push items in array in javascript
let items = [1, 2, 3]
items.push(4); // items = [1, 2, 3, 4]Example 2: js join two arrays
[1,2,3].concat([4,5,6])
// [1,2,3,4,5,6]let items = [1, 2, 3]
items.push(4); // items = [1, 2, 3, 4][1,2,3].concat([4,5,6])
// [1,2,3,4,5,6]