Minimize code for browsers

ardalanamini · ardalanamini · commit 34454799019f · 2019-04-10T13:35:28.000+04:30
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -13,9 +13,13 @@
 
 ---
 
+## [v1.1.1](https://github.com/foxifyjs/events/releases/tag/v1.1.1) - _(2019-04-10)_
+
+- :star2: Minimize code for browsers.
+
 ## [v1.1.0](https://github.com/foxifyjs/events/releases/tag/v1.1.0) - _(2019-04-04)_
 
-- :star2: Now we `throw` an error when you emit an `error` event and nobody is listening.
+- :zap: Now we `throw` an error when you emit an `error` event and nobody is listening.
 
 ## [v1.0.0](https://github.com/foxifyjs/events/releases/tag/v1.0.0) - _(2019-03-24)_
 
diff --git a/README.md b/README.md
@@ -77,7 +77,7 @@ We use [SemVer](http://semver.org) for versioning. For the versions available, s
 
 ## Authors
 
-- **Ardalan Amini** - *Owner/Developer* - [@ardalanamini](https://github.com/ardalanamini)
+- **Ardalan Amini** - *Core Maintainer* - [@ardalanamini](https://github.com/ardalanamini)
 
 See also the list of [contributors](https://github.com/foxifyjs/events/contributors) who participated in this project.
 
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@foxify/events",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "description": "An EventEmitter alternative for Node.js and browser",
   "author": "Ardalan Amini <ardalanamini22@gmail.com> (https://ardalanamini.com)",
   "license": "MIT",
@@ -38,22 +38,22 @@
     "test": "jest",
     "coverage": "npm test -- --coverage",
     "codecov": "npm run build && npm run coverage -- --runInBand && codecov",
-    "benchmark": "find benchmarks -name '*.js' -exec benchmarks/start.sh {} \\;"
+    "benchmarks": "find benchmarks -name '*.js' -exec benchmarks/start.sh {} \\;"
   },
   "dependencies": {},
   "devDependencies": {
     "@types/jest": "^24.0.11",
-    "@types/node": "^11.13.0",
+    "@types/node": "^11.13.2",
     "benchmark": "^2.1.4",
     "codecov": "^3.3.0",
     "drip": "^1.4.0",
     "eventemitter2": "^5.0.1",
     "eventemitter3": "^3.1.0",
     "jest": "^24.7.1",
-    "ts-jest": "^24.0.1",
+    "ts-jest": "^24.0.2",
     "tslint": "^5.15.0",
     "tslint-config-airbnb": "^5.11.1",
-    "typescript": "^3.4.1"
+    "typescript": "^3.4.3"
   },
   "jest": {
     "moduleFileExtensions": [
diff --git a/src/EventEmitter.ts b/src/EventEmitter.ts
@@ -64,23 +64,20 @@ class EventEmitter {
     );
   }
 
-  public listenerCount(event: string | symbol) {
+  public rawListeners(event: string | symbol) {
     assertEvent(event);
 
-    const listeners = this._listeners[event as string];
-
-    return listeners ? listeners.length : 0;
+    return this._listeners[event as string] || [];
   }
 
   public listeners(event: string | symbol) {
-    assertEvent(event);
-
-    const listeners = this._listeners[event as string];
+    const listeners = this.rawListeners(event);
+    const length = listeners.length;
 
-    if (!listeners) return [];
+    if (!length) return [];
 
-    const length = listeners.length;
-    const ret = [];
+    // tslint:disable-next-line:prefer-array-literal
+    const ret = new Array(length);
 
     for (let i = 0; i < length; i++) {
       ret[i] = listeners[i].listener;
@@ -89,25 +86,14 @@ class EventEmitter {
     return ret;
   }
 
-  public rawListeners(event: string | symbol) {
-    assertEvent(event);
-
-    return this._listeners[event as string] || [];
+  public listenerCount(event: string | symbol) {
+    return this.rawListeners(event).length;
   }
 
   public emit(event: "error", error: Error): boolean;
   public emit(event: string | symbol, ...args: any[]): boolean;
   public emit(event: string | symbol, ...args: any[]) {
-    assertEvent(event);
-
-    const listeners = this._listeners[event as string];
-
-    if (!listeners) {
-      if (event === "error") throw args[0];
-
-      return false;
-    }
-
+    const listeners = this.rawListeners(event);
     const length = listeners.length;
 
     if (!length) {
@@ -184,24 +170,24 @@ class EventEmitter {
     event: string | symbol,
     listener: (...args: any[]) => void,
   ) {
-    assertEvent(event);
     assertListener(listener);
 
-    let listeners = this._listeners[event as string];
+    let listeners = this.rawListeners(event);
+    const length = listeners.length;
 
-    if (!listeners) return this;
+    if (!length) return this;
 
-    if (listeners.length === 1) {
+    if (length === 1) {
       if (listener !== listeners[0].listener) return this;
 
       this._listeners[event as string] = undefined;
 
       return this;
     }
 
-    listeners = [...listeners];
+    listeners = listeners.slice(0);
 
-    let index = listeners.length - 1;
+    let index = length - 1;
     for (; index >= 0; index--) {
       if (listeners[index].listener === listener) break;
     }
diff --git a/src/Item.ts b/src/Item.ts
@@ -1,8 +1,8 @@
 class Item {
   constructor(
-    public listener: (...args: any[]) => void,
-    public context: any,
-    public once: boolean,
+    public readonly listener: (...args: any[]) => void,
+    public readonly context: any,
+    public readonly once: boolean,
   ) {}
 }
 
