Kola Signals
Statically-Typed For U implementation of signals. Use with Typescript but you can also use it for Javascript/Coffeescript.
Install via:
npm install kola-signals --saveQuick guide
import signals = require('kola-signals');
var messenger:signals.Dispatcher<string> = new signals.Dispatcher<string>();
var receiver = (msg: string) => {
console.log("message received!", msg);
}
messenger.listen(receiver);
messenger.dispatch("Hello Awesomeness!");Use it in classes
import signals = require('kola-signals');
var smsService = new signals.Dispatcher<string>();
class Phone {
msgs: string[];
constructor() {
this.msgs = [];
}
onReceiveMsg(msg:string):void {
console.log("Message received!", msg);
this.msgs.push(msg);
}
}
var phone: Phone = new Phone();
smsService.listen(phone.onReceiveMsg, phone);
smsService.dispatch("Hi there!");NOTE: In this example, we pass in the 'phone' as second argument for listen(). It allows the onReceiveMsg() to be called with 'this' as the 'phone' instance.
Call once
import signals = require('kola-signals');
smsDispatcher.listen(onceAFunction, null, true);Unlisten
The listen() method of signals.Dispatcher returns an instance of signals.Listener. You can use this instance to call unlisten() like so:
var listener = smsService.listen(onReceiveMsg);
...
listener.unlisten();