how to select a random number of an array js code example

Example 1: javascript get random array value

//get random value from array
var colors = ["red","blue","green","yellow"];
var randColor = colors[Math.floor(Math.random() * colors.length)];

Example 2: get random entry from array javascript

const rnd = (arr) => { return arr[Math.floor(Math.random() * arr.length)] };