A simple eventbus for webapp.

usage:

CMD:

// module A
var ge = require('gevent');
var uid1 = ge.on('dataChange', item => drawData(item));
var uid2 = ge.on('dataChange', item => drawData2(item));

// remove all by event type
ge.off('dataChange');
// or remove one by event id if you have duplicate event name registered
ge.offOne(uid1);

// module B
var ge = require('gevent');
doAsyncRequest().then(res => ge.emit('dataChange', res));

Js Lib:

<script src='./gevent/index.js'></script>
<script>
    // listen
    gEvent.on('dataChange', item => drawData(item));
    // fire
    doAsyncRequest().then(res => gEvent.emit('dataChange', res));
</script>

apis:

• on(eventName, callback) subscribe event

• off(eventName) unsubscribe all event by event name

• offOne(eventId) unsubscribe one event by event id

• emit(eventName, params) trigger event with transition data

• clear() clear all events subscribed