crypto randomint min max callback

• min {integer} Start of random range (inclusive). Default: 0.
• max {integer} End of random range (exclusive).
• callback {Function} function(err, n) {}.

Return a random integer n such that min <= n < max. This implementation avoids [modulo bias][].

The range (max - min) must be less than 2⁴⁸. min and max must be [safe integers][].

If the callback function is not provided, the random integer is generated synchronously.

// Asynchronous
crypto.randomInt(3, (err, n) => {
  if (err) throw err;
  console.log(`Random number chosen from (0, 1, 2): ${n}`);
});

// Synchronous
const n = crypto.randomInt(3);
console.log(`Random number chosen from (0, 1, 2): ${n}`);

// With `min` argument
const n = crypto.randomInt(1, 7);
console.log(`The dice rolled: ${n}`);