how to copy an array to another without using reference in javascript code example

Example 1: js copy array into another

var destinationArray = Array.from(sourceArray);

Example 2: how to copy one array to another in javascript

// 1) Array of literal-values (boolean, number, string) 
const type1 = [true, 1, "true"];

// 2) Array of literal-structures (array, object)
const type2 = [[], {}];

// 3) Array of prototype-objects (function)
const type3 = [function () {}, function () {}];