how toadd array code example

Example 1: javascript array push

// JS array .push() method

let items_in_backpack = ['food', 'water', 'flashlight', 'GPS']; // Our starting array
items_in_backpack.push('javascript array push knowledge'); // Adds the <<< string to the array items_in_backpack


// Now the array is:
// ['food', 'water', 'flashlight', 'GPS', 'javascript array push knowledge']

Example 2: how to add to an array

var ar = ['one', 'two', 'three'];
ar[3] = 'four'; // add new element to ar