[Typescript SimpleEvents] Simple Data Event

This event type provides data to its callabacks.

Class Information

export interface DataEvent<D> {
    on(callback: (data: D) => void): number;
    off(handle: number): void;
    trigger(data: D): void;
}

export class SimpleDataEvent<D> extends BaseEvent<D, void> implements DataEvent<D> {
    on= (callback: (data: D) => void): number => super.add(callback);
    off= (handle: number): void => super.remove(handle);
    trigger= (data: D): void => super.getResult(data);
}

on: adds a callback to the invoke list and returns its handle;
off: removes a callback from the invoke list based on its handle;
trigger: invokes all the callback in order;

Example Usage

the following test.ts compiled into test.js:

import { SimpleDataEvent } from "typescript-simpleevents";

interface EventData {
    name: string;
    location: string;
}

class EventTest {
    readonly action = new SimpleDataEvent<EventData>();

    doAction(name: string, location: string) {
        this.action.trigger({ name: name, location: location });
    }
}

const test = new EventTest();
test.action.on(d => { console.log(`${d.name} was ${d.location}!`); });
test.doAction('Gigi', 'here');