javascript random number

1//To genereate a number between 0-1
2Math.random();
3//To generate a number that is a whole number rounded down
4Math.floor(Math.random())
5/*To generate a number that is a whole number rounded down between
61 and 10 */
7Math.floor(Math.random() * 10) + 1 //the + 1 makes it so its not 0.

1Math.random() 
2// will return a number between 0 and 1, you can then time it up to get larger numbers.
3//When using bigger numbers remember to use Math.floor if you want it to be a integer
4Math.floor(Math.random() * 10) // Will return a integer between 0 and 9
5Math.floor(Math.random() * 11) // Will return a integer between 0 and 10
6
7// You can make functions aswell 
8function randomNum(min, max) {
9	return Math.floor(Math.random() * (max - min)) + min; // You can remove the Math.floor if you don't want it to be an integer
10}

1//returns a random number between 1 and maxNumber
2//replace Math.ceil with Math.round if you want to include 0 as well
3const randomNumber = (maxNumber) => { 
4	return Math.ceil(Math.random() * maxNumber);
5}

1Math.floor(Math.random() * 10) // Will return a integer between 0 and 9
2Math.floor(Math.random() * 11) // Will return a integer between 0 and 10

1Math.random() * 10 = 0-10

1const randomVCC = () => {
2	const cc = 4728398706189983
3	const randomVirtualCreditCard = Math.random(cc).toString().replace('0.', '')
4	const visaCreditCard = 4 + randomVirtualCreditCard
5	const pattern = /\d{16}/.exec(+visaCreditCard).join('')
6    return typeof +pattern === 'number' && +pattern
7}
8console.log(randomVCC())