how to use the math random in javascript for string array code example

Example 1: random string from array javascript

var textArray = [
    'song1.ogg',
    'song2.ogg'
];
var randomNumber = Math.floor(Math.random()*textArray.length);

Example 2: js random string from array

const randomElement = array[Math.floor(Math.random() * array.length)];