how to fill an array with another array javascript code example

Example 1: assign array to another array javascript

var ar = ["apple","banana","canaple"];
var bar = Array.from(ar);
alert(bar[1]); // alerts 'banana'

// Notes: this is for in In ES6, works for an object of arrays too!

Example 2: js copy array into another

var destinationArray = Array.from(sourceArray);