What is the purpose of an 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: what are the two ways to create an array in javascript examples?

let scores = Array(10);