random whole number javascript 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: javascript get random number

// Returns a number between min and max
function getRandomArbitrary(min, max) {
  return Math.random() * (max - min) + min;
}

Example 3: javascript random number between 0 and 10

Math.floor(Math.random() * 10);

Example 4: Generate random whole numbers javascript

var randomWholeNumber = Math.floor(Math.random() * 20);


function randomWholeNum() {

	return Math.floor(Math.random() * 10);

}

console.log(randomWholeNum());

Example 5: random number in js

Math.random() returns a random number in [0,1)