https://github.com/maikenegreiros/observer-pattern

A simple observer pattern implementation in TypeScript.
https://github.com/maikenegreiros/observer-pattern

Last synced: 4 days ago
JSON representation

A simple observer pattern implementation in TypeScript.

• Host: GitHub
• URL: https://github.com/maikenegreiros/observer-pattern
• Owner: maikenegreiros
• License: mit
• Created: 2018-04-26T23:44:43.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2018-07-10T12:25:49.000Z (over 6 years ago)
• Last Synced: 2024-11-08T23:05:41.673Z (9 days ago)
• Language: TypeScript
• Homepage:
• Size: 5.86 KB
• Stars: 0
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md
  • License: LICENSE

Awesome Lists containing this project

README

        
# ts-observer-pattern

A simple observer pattern implementation in TypeScript.  

```

npm install ts-observer-pattern

```

## Example

In the example that follows, I'm implementing a relationship bettween a magazine and it subscribers

```TypeScript

// Magazine.ts

import { Subject } from 'ts-observer-pattern'

class Magazine extends Subject

{

    private Observers: Observers[]

    public publish()

    {

        //Some code here

        this.Observer.notify("New edition available") //Here I passed a string,

        //but you can pass any data you want

    }

}

```

```TypeScript

// Subscriber.ts

import { Observer } from 'ts-observer-pattern'

class Subscriber implements Observer

{

    public update(data): this

    {

        //Do whatever you want here with the information passed by the Magazine object

    }

}

```

```TypeScript

// main.ts

import { Magazine } from './Magazine'

import { Subscriber } from './Subscriber'

let Coders = new Magazine

let Matt = new Subscriber

let Ana = new Subscriber

Coders.attach(Matt)

Coders.attach(Ana)

```