Easy GUIDs for Typescript (ez-guid)

The library ez-guid serves as type definition for globally unique IDs(GUIDs) in Typescript and therefore provides interfaces to generate/parse/compare/validate them.

Supported GUID Formats

Hyphenated (default, "readable", 36 chars):

b77d409a-10cd-4a47-8e94-b0cd0ab50aa1

Non-hyphenated (32 chars):

b77d409a10cd4a478e94b0cd0ab50aa1

All GUIDs are transformed and stored internally as defined in the RFC 4122 specification

Getting started

Installation

npm i ez-guid

For NPM version < 5

npm install ez-guid --save

Instantiation

Random GUID

import { Guid } from "ez-guid";

export class Example {
    public id: Guid;
    constructor() {
        //using the static method
        this.id = Guid.create(); // ==> random GUID, e.g. b77d409a-10cd-4a47-8e94-b0cd0ab50aa1

        //using the provided constructor
        this.id = new Guid(); //random aswell
    }
}

GUID from a string

import { Guid } from "ez-guid";

export class Example {
    public id: Guid;
    constructor() {
        //using the static method
        this.id = Guid.create("b77d409a-10cd-4a47-8e94-b0cd0ab50aa1");

        //using the provided constructor
        this.id = new Guid("b77d409a-10cd-4a47-8e94-b0cd0ab50aa1");

        //no hyphens
        this.id = new Guid("b77d409a10cd4a478e94b0cd0ab50aa1"); //transformed to b77d409a-10cd-4a47-8e94-b0cd0ab50aa1
    }
}

Props and Methods

Method/Prop	Description
static isValid (guid: any): boolean	Check if value is a guid code
static create (guid?: string): Guid	Creates a new Guid instance; random if no param given
static createEmpty (): Guid	Creates an empty GUID
static random(): string	Creates and returns a random GUID string
equals (other: Guid): boolean	Compares two Guid instances with each other
isEmpty (): boolean	Validates if a GUID instance is empty (GUID containing only zeros)
toString (): string	Returns a guid as string
toShortString(): string	Returns a guid as string without hyphens

Why bother with yet another GUID TypeScript library?

Well, there are indeed a few GUID/UUID-related libraries out there! Most of them are not maintained anymore or lack functionality for GUID handling, that's why ez-guid was started.