random number generator 1-100 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: js random number

var random;
var max = 8
function findRandom() {
  random = Math.floor(Math.random() * max) //Finds number between 0 - max
  console.log(random)
}
findRandom()

Example 3: 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 4: Math.random() javascript

//Returns a number between 1 and 0
  console.log(Math.random());
  
//if you want a random number between two particular numbers, 
//you can use this function
  function getRandomBetween(min, max) {
    return Math.random() * (max - min) + min;
  }
//Returns a random number between 20 and 170
  console.log(getRandomBetween(20,170));
  
//if you want a random integer number from one number to another 
//(including the min and the max numbers), you can use this function
  function getRandomIntBetween(min, max) {
    min = Math.ceil(min);
    max = Math.floor(max);
    return Math.floor(Math.random() * (max - min + 1)) + min;
  }
  
//Returns a random integer number from 0 to 25
  console.log(getRandomIntInclusive(0,25));

Example 5: math random 0 to 100

Math.floor(Math.random() * 101);

Example 6: javascript get random number

// Returns an integer between min and max (the maximum is exclusive and the minimum is inclusive)
function getRandomInt(min, max) {
  min = Math.ceil(min);
  max = Math.floor(max);
  return Math.floor(Math.random() * (max - min) + min); 
}