round random number javascript code example

Example 1: how to generate a random number in javascript

//To genereate a number between 0-1
Math.random();
//To generate a number that is a whole number rounded down
Math.floor(Math.random())
/*To generate a number that is a whole number rounded down between
1 and 10 */
Math.floor(Math.random() * 10) + 1 //the + 1 makes it so its not 0.

Example 2: generate random number javascript

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

Example 3: how to write a program that shows a random number between 1 and 100 in your browser

var randomNum ;
randomNum = Math.ceil(Math.random() * 100);
document.write("Random number between 1 and 100: " + randomNum)