onfire.js

--- package.json (entry) ---
{
  "name": "onfire.js",
  "officialName": "onfire.js",
  "version": "2.0.1",
  "summary": "onfire.js is a mini (~500 b) version for event-emitter.",
  "description": "onfire.js is a mini (~500 b) version for event-emitter.",
  "author": {
    "name": "hustcc",
    "url": "https://atool.vip/"
  },
  "license": "MIT",
  "keywords": [
    "onfire",
    "ee",
    "event",
    "emitter",
    "event-emitter",
    "subscribe"
  ],
  "main": "lib/index.js",
  "repository": {
    "type": "git",
    "url": "https://github.com/hustcc/onfire.js"
  },
  "bugs": {
    "url": "https://github.com/hustcc/onfire.js/issues"
  },
  "devDependencies": {
    "@babel/cli": "^7.2.3",
    "@babel/core": "^7.2.2",
    "@babel/preset-env": "^7.2.3",
    "@types/jest": "^23.3.10",
    "babel-plugin-version": "^0.2.3",
    "jest": "^23.6.0",
    "rimraf": "^2.6.2",
    "ts-jest": "^23.10.5",
    "typescript": "^3.2.2"
  },
  "scripts": {
    "lint": "tsc --noEmit",
    "test": "jest",
    "build": "rimraf tmp lib && tsc && babel tmp --out-dir lib --copy-files && rimraf tmp"
  },
  "dependencies": {},
  "jest": {
    "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.ts$",
    "transform": {
      "^.+\\.(ts|t

--- index.js (entry) ---
"use strict";
/**
 * mini (~500 b) version for event-emitter.
 *
 * Created by hustcc on 2018/12/31
 * Contract: vip@hust.edu.cn
 */

Object.defineProperty(exports, "__esModule", {
  value: true
});
/**
 * const ee = new OnFire();
 *
 * ee.on('click', (...values) => {});
 *
 * ee.on('mouseover', (...values) => {});
 *
 * ee.emit('click', 1, 2, 3);
 * ee.fire('mouseover', {}); // same with emit
 *
 * ee.off();
 */

var OnFire =
/** @class */
function () {
  function OnFire() {
    // 所有事件的监听器
    this.es = {};
  }

  OnFire.prototype.on = function (eventName, cb, once) {
    if (once === void 0) {
      once = false;
    }

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

    this.es[eventName].push({
      cb: cb,
      once: once
    });
  };

  OnFire.prototype.once = function (eventName, cb) {
    this.on(eventName, cb, true);
  };

  OnFire.prototype.fire = function (eventName) {
    var params = [];

    for (var _i = 1; _i < arguments.length; _i++) {
      params[_i - 1] = arguments[_i];
    }

    var listeners = this.es[eventName] || [];
    var l = listeners.length;

    for (var i = 0; i < l; i++) {
      var _a = listeners[i],
          cb = _a.cb,