Random Numbers with or without range and Random item from a array in JavaScript

Here is the way to get random integers in JavaScript

return Math.floor(Math.random()*8)

the above will return random number from 0  to 7

To get a random number within given range.

return Math.floor(Math.random() * (to - from + 1) + from);

this will return a random number given range from & to

can get a random item from array like below functions:

function getRandomFromTo(from, to){

return Math.floor(Math.random() * (to - from + 1) + from);

}

function getRandomItem(arr){

return arr[getRandomFromTo(0, arr.length - 1)];

}