Random ID Generators #

A random ID generator is a tool that generates unique, random identification codes. These codes can be used for a variety of purposes, such as to identify users or data records in a system.

There are many different ways to generate random IDs, and the specific method used will depend on the requirements of the application.

Random UUID v4 #

Generates a random UUID v4 using a cryptographically secure random number generator.

Method Signature #

function randomUUIDv4(): string {}

function randomUUIDv4(): string {}

Usage #

randomUUIDv4(); // d25b2224-788c-46de-8383-65f961461ccd

randomUUIDv4(); // d25b2224-788c-46de-8383-65f961461ccd

Random Integer #

Generates a 32 bit cryptographically strong random integer

Method Signature #

function randomInt(): number {}

function randomInt(): number {}

Usage #

randomInt(); // 3328041444

randomInt(); // 3328041444

Random BigInt #

Generates a 64 bit cryptographically strong random integer

Method Signature #

function randomBigInt(): bigint {}

function randomBigInt(): bigint {}

Usage #

randomBigInt(); // 12607617176303824377n

randomBigInt(); // 12607617176303824377n

Random Number of Base N #

Generates a random number of base N and limited to a given maxChars size.

The default maxChars value is limited to 6 characters and hence the default generated value may NOT be considered cryptographically strong in nature.

The function may throw a few exceptions based on the user input:

InvalidNumberBaseException is thrown for incorrect base value. Supported bases are between [2, 36].

IdGenerationMaxCharsOutOfBoundException is thrown for incorrect maxChars value. Supported bases are between [2, 64].

Method Signature #

function randomBaseN(base: number, maxChars = 6): string {}

function randomBaseN(base: number, maxChars = 6): string {}

Usage #

// binary number of max 6 chars
randomBaseN(2); // 100101

// octal number of max 9 chars
randomBaseN(8, 9); // 130553172

// binary number of max 6 chars
randomBaseN(2); // 100101

// octal number of max 9 chars
randomBaseN(8, 9); // 130553172

Random Hex #

Derivative of randomBaseN()

Generates a random number in hexadecimal form. Depending on the maximum character limit posed by the caller, these maybe cryptographically strong or not.

Method Signature #

function randomHex(maxChars = 6): string {}

function randomHex(maxChars = 6): string {}

Usage #

randomHex(); // 2b4a80

randomHex(9); // 46029fed4

randomHex(); // 2b4a80

randomHex(9); // 46029fed4

Random ID (Alpha Numeric) #

Derivative of randomBaseN()

These are random id in alphanumeric form. The alphabets are all in small cases.

Method Signature #

function randomId(maxChars = 6): string {}

function randomId(maxChars = 6): string {}

Usage #

randomId(); // pi9xh

randomId(9); // r39txcbqj

randomId(); // pi9xh

randomId(9); // r39txcbqj