Generate random password string with requirements in javascript

Question

I want to generate a random string that has to have 5 letters from a-z and 3 numbers.

How can I do this with JavaScript?

I\'ve got the following script, but

Answer 1

My Crypto based take on the problem. Using ES6 and omitting any browser feature checks. Any comments on security or performance?

const generatePassword = (
  passwordLength = 12,
  passwordChars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz',
) =>
  [...window.crypto.getRandomValues(new Uint32Array(passwordLength))]
    .map(x => passwordChars[x % passwordChars.length])
    .join('');