math.random bounds code example

Example 1: javascript get random number in range

function getRandomNumberBetween(min,max){
    return Math.floor(Math.random()*(max-min+1)+min);
}

//usage example: getRandomNumberBetween(20,400);

Example 2: random in range

// Get a random number between 20 and 30 
Math.round((Math.random() * (30 - 20 + 1)) + 20);