Function randomInt

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

The range (max - min) must be less than 2**48. min and max must be safe integers.

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

// Asynchronous
const {
  randomInt,
} = await import('node:crypto');

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

const n = randomInt(3);
console.log(`Random number chosen from (0, 1, 2): ${n}`);
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// With `min` argument
const {
  randomInt,
} = await import('node:crypto');

const n = randomInt(1, 7);
console.log(`The dice rolled: ${n}`);
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Return a random integer n such that min <= n < max. This implementation avoids modulo bias.

The range (max - min) must be less than 2**48. min and max must be safe integers.

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

// Asynchronous
const {
  randomInt,
} = await import('node:crypto');

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

// Synchronous
const {
  randomInt,
} = await import('node:crypto');

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

// With `min` argument
const {
  randomInt,
} = await import('node:crypto');

const n = randomInt(1, 7);
console.log(`The dice rolled: ${n}`);
Copy

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

The range (max - min) must be less than 2**48. min and max must be safe integers.

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

// Asynchronous
const {
  randomInt,
} = await import('node:crypto');

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

// Synchronous
const {
  randomInt,
} = await import('node:crypto');

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

// With `min` argument
const {
  randomInt,
} = await import('node:crypto');

const n = randomInt(1, 7);
console.log(`The dice rolled: ${n}`);
Copy

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

The range (max - min) must be less than 2**48. min and max must be safe integers.

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

// Asynchronous
const {
  randomInt,
} = await import('node:crypto');

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

// Synchronous
const {
  randomInt,
} = await import('node:crypto');

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

// With `min` argument
const {
  randomInt,
} = await import('node:crypto');

const n = randomInt(1, 7);
console.log(`The dice rolled: ${n}`);
Copy