Node crypto.randomInt function | API Reference | Bun
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node:crypto/
randomIntFrandomInt
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/
BuildDocsReferenceGuidesBlogDiscord/
node:crypto/
randomIntFrandomInt
function
crypto.randomInt {
if (err) throw err;
console.log(`Random number chosen from (0, 1, 2): ${n}`);
});
```
```js
// Synchronous
const {
randomInt,
} = await import('node:crypto');
const n = randomInt(3);
console.log(`Random number chosen from (0, 1, 2): ${n}`);
```
```js
// With `min` argument
const {
randomInt,
} = await import('node:crypto');
const n = randomInt(1, 7);
console.log(`The dice rolled: ${n}`);
```" data-algolia-static="false" data-algolia-merged="false" data-type="Function">function
randomInt(max: number): number;
Return a random integer n such that min . 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}`);
});
// Synchronous
const {
randomInt,
} = await import('node:crypto');
const n = randomInt(3);
console.log(`Random number chosen from (0, 1, 2): ${n}`);
// With `min` argument
const {
randomInt,
} = await import('node:crypto');
const n = randomInt(1, 7);
console.log(`The dice rolled: ${n}`);
@param max
End of random range (exclusive).
function
randomInt(min: number,max: number): number;
Return a random integer n such that min . 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}`);
});
// Synchronous
const {
randomInt,
} = await import('node:crypto');
const n = randomInt(3);
console.log(`Random number chosen from (0, 1, 2): ${n}`);
// With `min` argument
const {
randomInt,
} = await import('node:crypto');
const n = randomInt(1, 7);
console.log(`The dice rolled: ${n}`);
@param min
Start of random range (inclusive).
@param max
End of random range (exclusive).
function
randomInt(max: number,callback: (err: null |
Error, value: number) => void): void;
Return a random integer n such that min . 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}`);
});
// Synchronous
const {
randomInt,
} = await import('node:crypto');
const n = randomInt(3);
console.log(`Random number chosen from (0, 1, 2): ${n}`);
// With `min` argument
const {
randomInt,
} = await import('node:crypto');
const n = randomInt(1, 7);
console.log(`The dice rolled: ${n}`);
@param max
End of random range (exclusive).
@param callback
function(err, n) {}.
function
randomInt(min: number,max: number,callback: (err: null |
Error, value: number) => void): void;
Return a random integer n such that min . 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}`);
});
// Synchronous
const {
randomInt,
} = await import('node:crypto');
const n = randomInt(3);
console.log(`Random number chosen from (0, 1, 2): ${n}`);
// With `min` argument
const {
randomInt,
} = await import('node:crypto');
const n = randomInt(1, 7);
console.log(`The dice rolled: ${n}`);
@param min
Start of random range (inclusive).
@param max
End of random range (exclusive).
@param callback
function(err, n) {}.
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