how to make a function get a array in js code example

Example 1: javascript array

//create an array like so:
var colors = ["red","blue","green"];

//you can loop through an array like this:
for (var i = 0; i < colors.length; i++) {
    console.log(colors[i]);
}

Example 2: return array javascript

function func() {
  return [5, "string", {a: 7}];
}