Event Service

Events service which provide event handling in an Object scope

It's written in typescript, compiled to es5 and minified. Typescript declarations can be found here. WARNING: es6 Map used. See compatibility table or use shim. Note the eventService.d.ts depends on ambient typings for ES 6 collections. That's mean if you want your typescript compiler not to fail, you have to install es6-collections.d.ts to your project.

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Instalation

npm i "git+https://github.com/trofima/event-service.git"

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Methods

constructor

Creates new EventService instance.

    var eventService = new EventService();

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.on(type, action[, context])

• type (string) - event name to listen to
• action (Function) - action to be called
• context (Object) - context for calling the action

Binds action to the event. You can provide several types divided by spaces or commas.

    eventService.on('hello', (e) => console.log('Hello ', e.data.to));
    eventService.on('hello, hi, goodMorning', (e) => console.log('Hi!'), this);

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.once(type, action[, context])

• type (string) - event name to listen to
• action (Function) - action to be called
• context (Object) - context for calling the action

Binds action to the event only once. You can provide several types divided by spaces or commas.

    eventService.once('hello', (e) => console.log('Hello ', e.data.to));
    eventService.once('hello, hi, goodMorning', (e) => console.log('Hi!'), this);

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.trigger(type[, data[, rawEvent]])

• type (string) - event name to be dispatched
• data (Object) - event data
• rawEvent (*) - RAW event

Triggers an event on this object. You can provide several types divided by spaces or commas.

    eventService.trigger('saidHello', { to: 'John' }, nativeClickEvent);
    eventService.trigger('hello, hi, goodMorning', { to: 'John' });

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.off([type[, action]])

• type (string) - event name to stop listen to
• action (Function) - action to be removed from listening stack

Removes actions. You can provide several types divided by spaces or commas. If action isn't provided all actions will be removed for the event type. If type isn't provided all actions will be removed for the entire object.

    eventService.off('hello, hi', this.sayHello); // removes "this.sayHello" action for the "hello" event
    eventService.off('hello'); // removes all actions for the "hello" event
    eventService.off(); // removes all actions for the eventService instance

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