0 100 in javascript code example

Example 1: random numbers javascript

Math.floor(Math.random() * 100);     // returns a 
  random integer from 0 to 99

Example 2: javascript random number

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