crypto-random-string
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Package description
The crypto-random-string package is a utility for generating cryptographically strong random strings of a specified length, using Node.js's crypto module. It can be used for creating unique identifiers, tokens, or any other use cases where random strings are needed.
Generating a random string of a specified length
This feature allows you to generate a random string with a specified length. The length is provided as an option in an object passed to the function.
const cryptoRandomString = require('crypto-random-string');
const randomString = cryptoRandomString({length: 10});
console.log(randomString);Generating a random string with a specific type
This feature allows you to generate a random string with a specific character set, such as alphanumeric, numeric, or 'url-safe' characters.
const cryptoRandomString = require('crypto-random-string');
const alphanumericString = cryptoRandomString({length: 10, type: 'alphanumeric'});
console.log(alphanumericString);Generating a random string with custom characters
This feature allows you to generate a random string using a custom set of characters provided by the user.
const cryptoRandomString = require('crypto-random-string');
const customString = cryptoRandomString({length: 10, characters: 'abc123'});
console.log(customString);The uuid package is used to generate universally unique identifiers (UUIDs). While crypto-random-string generates random strings of a specified length, uuid generates strings in a specific UUID format. UUIDs are often used as database keys, component identifiers, or to ensure uniqueness across distributed systems.
NanoID is a tiny, secure, URL-friendly, unique string ID generator. Similar to crypto-random-string, it can generate random strings of various lengths and character sets. NanoID claims to be a more compact and faster alternative to UUIDs and has a smaller package size compared to crypto-random-string.
Randomatic is a package that generates random strings based on patterns. It allows for more complex patterns and masks than crypto-random-string, such as repeating sequences and placeholders for specific character types (letters, numbers, etc.). This package offers more granular control over the structure of the generated string.
Readme
Generate a cryptographically strong random string
Can be useful for creating an identifier, slug, salt, fixture, etc.
$ npm install crypto-random-string
const cryptoRandomString = require('crypto-random-string');
cryptoRandomString({length: 10});
//=> '2cf05d94db'
cryptoRandomString({length: 10, type: 'base64'});
//=> 'YMiMbaQl6I'
cryptoRandomString({length: 10, type: 'url-safe'});
//=> 'YN-tqc8pOw'
cryptoRandomString({length: 10, characters: '1234567890'});
//=> '1791935639'
Returns a randomized string. Hex by default.
Type: object
Required
Type: number
Length of the returned string.
Type: string
Default: 'hex'
Values: 'hex' 'base64' 'url-safe'
Use only characters from a predefined set of allowed characters.
Cannot be set at the same time as the characters option.
Type: string
Minimum length: 1
Maximum length: 65536
Use only characters from a custom set of allowed characters.
Cannot be set at the same time as the type option.
MIT © Sindre Sorhus
FAQs
Generate a cryptographically strong random string
The npm package crypto-random-string receives a total of 15,356,772 weekly downloads. As such, crypto-random-string popularity was classified as popular.
We found that crypto-random-string demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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