tnt-form/dist/lib/eventable.js

## Use

"use strict";

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var Eventable = function () {
	function Eventable() {
		_classCallCheck(this, Eventable);
	}

	_createClass(Eventable, [{
		key: 'on',
		value: function on(eventName, cb) {

			if (!this.eventListeners) {
				this.eventListeners = [];
			}

			if (typeof this.eventListeners[eventName] === 'undefined') {
				this.eventListeners[eventName] = [];
			}

			this.eventListeners[eventName].push(cb);
		}
	}, {
		key: 'trigger',
		value: function trigger(eventName, arg) {

			if (!this.eventListeners) {
				this.eventListeners = [];
			}

			if (typeof this.eventListeners[eventName] !== 'undefined') {
				this.eventListeners[eventName].forEach(function (cb) {
					cb(arg);
				});
			}
		}
	}]);

	return Eventable;
}();

module.exports = Eventable;