event-emitter - npm Package Compare versions

Comparing version 0.2.0 to 0.2.1

benchmark/many-on.js

@@ -6,7 +6,13 @@ 'use strict';
 //
-// $ npm install bench eventemitter2 signals
-// $ node benchmark/single-on.js
+// $ npm install eventemitter2 signals
+// $ node benchmark/many-on.js
 
-var ee, native, ee2, signals;
+var forEach    = require('es5-ext/lib/Object/for-each')
+  , pad        = require('es5-ext/lib/String/prototype/pad')
 
+  , now = Date.now
+
+  , time, total, count = 1000000, i, data = {}
+  , ee, native, ee2, signals, a = {}, b = {};
+
 ee = (function () {
@@ -44,19 +50,36 @@ var ee = require('../lib/core')();
 
-var a = {}, b = {};
+console.log("Emit for 3 listeners", "x" + count + ":\n");
 
-exports.compare = {
-	"event-emitter (this implementation)": function () {
-		ee.emit('test', a, b);
-	},
-	"EventEmitter (Node's native)": function () {
-		native.emit('test', a, b);
-	},
-	"EventEmitter2": function () {
-		ee2.emit('test', a, b);
-	},
-	"Signals": function () {
-		signals.test.dispatch(a, b);
-	}
-};
+i = count;
+time = now();
+while (i--) {
+	ee.emit('test', a, b);
+}
+data["event-emitter (this implementation)"] = now() - time;
 
-require('bench').runMain();
+i = count;
+time = now();
+while (i--) {
+	native.emit('test', a, b);
+}
+data["EventEmitter (Node.js native)"] = now() - time;
+
+i = count;
+time = now();
+while (i--) {
+	ee2.emit('test', a, b);
+}
+data["EventEmitter2"] = now() - time;
+
+i = count;
+time = now();
+while (i--) {
+	signals.test.dispatch(a, b);
+}
+data["Signals"] = now() - time;
+
+forEach(data, function (value, name, obj, index) {
+	console.log(index + 1 + ":",  pad.call(value, " ", 5), name);
+}, null, function (a, b) {
+	return this[a] - this[b];
+});

benchmark/single-on.js

@@ -6,7 +6,13 @@ 'use strict';
 //
-// $ npm install bench eventemitter2 signals
+// $ npm install eventemitter2 signals
 // $ node benchmark/single-on.js
 
-var ee, native, ee2, signals;
+var forEach    = require('es5-ext/lib/Object/for-each')
+  , pad        = require('es5-ext/lib/String/prototype/pad')
 
+  , now = Date.now
+
+  , time, total, count = 1000000, i, data = {}
+  , ee, native, ee2, signals, a = {}, b = {};
+
 ee = (function () {
@@ -34,19 +40,36 @@ var ee = require('../lib/core');
 
-var a = {}, b = {};
+console.log("Emit for single listener", "x" + count + ":\n");
 
-exports.compare = {
-	"event-emitter (this)": function () {
-		ee.emit('test', a, b);
-	},
-	"EventEmitter (Node's native)": function () {
-		native.emit('test', a, b);
-	},
-	"EventEmitter2": function () {
-		ee2.emit('test', a, b);
-	},
-	"Signals": function () {
-		signals.test.dispatch(a, b);
-	}
-};
+i = count;
+time = now();
+while (i--) {
+	ee.emit('test', a, b);
+}
+data["event-emitter (this implementation)"] = now() - time;
 
-require('bench').runMain();
+i = count;
+time = now();
+while (i--) {
+	native.emit('test', a, b);
+}
+data["EventEmitter (Node.js native)"] = now() - time;
+
+i = count;
+time = now();
+while (i--) {
+	ee2.emit('test', a, b);
+}
+data["EventEmitter2"] = now() - time;
+
+i = count;
+time = now();
+while (i--) {
+	signals.test.dispatch(a, b);
+}
+data["Signals"] = now() - time;
+
+forEach(data, function (value, name, obj, index) {
+	console.log(index + 1 + ":",  pad.call(value, " ", 5), name);
+}, null, function (a, b) {
+	return this[a] - this[b];
+});

lib/all-off.js

 'use strict';
 
 var value = require('es5-ext/lib/Object/valid-value')
-  , id    = '- ee v0.2 -';
+  , id    = require('./_id');
 
@@ -6,0 +6,0 @@ module.exports = function (emitter) {

lib/core.js

 'use strict';
 
-var copy       = require('es5-ext/lib/Array/prototype/copy')
-  , d          = require('es5-ext/lib/Object/descriptor')
-  , callable   = require('es5-ext/lib/Object/valid-callable')
+var d        = require('es5-ext/lib/Object/descriptor')
+  , callable = require('es5-ext/lib/Object/valid-callable')
+  , id       = require('./_id')
 
@@ -12,8 +12,5 @@ , apply = Function.prototype.apply, call = Function.prototype.call
   , on, once, off, emit
-  , id, colId, onceTag
-  , methods, descriptors, base;
+  , colId, onceTag, methods, descriptors, base;
 
-id = '- ee v0.2 -';
-colId = '- ee listeners v0.2 -';
-onceTag = '\u0001once';
+colId = id + 'l_';
 
@@ -35,4 +32,3 @@ on = function (type, listener) {
 	} else {
-		(data[type] = [data[type], listener]).copy = copy;
-		data[type][colId] = true;
+		(data[type] = [data[type], listener])[colId] = true;
 	}
@@ -109,3 +105,3 @@
 
-		listeners = listeners.copy();
+		listeners = listeners.slice();
 		for (i = 0; (listener = listeners[i]); ++i) {
@@ -112,0 +108,0 @@ apply.call(listener, this, args);

package.json

 {
   "name": "event-emitter",
-  "version": "0.2.0",
-  "description": "Basic event emitter for Node.js and browser",
+  "version": "0.2.1",
+  "description": "Cross-environment event emitter",
   "keywords": [
@@ -6,0 +6,0 @@ "event",

README.md

@@ -38,3 +38,3 @@ # EventEmitter – Cross-environment event emitter solution for JavaScript
 
-### allOff
+### allOff(obj)
 
@@ -48,3 +48,3 @@ Remove all listeners
 
-### pipe
+### pipe(emitter1, emitter2)
 
@@ -54,3 +54,3 @@ Pipe events from one emitter to other
 ```javascript
-var eePipe  =require('event-emitter/lib/pipe');
+var eePipe = require('event-emitter/lib/pipe');
 
@@ -77,4 +77,24 @@ var emitter1 = ee(), listener1;
 
+### hasListeners(obj[, type])
+
+Whether given object have registered listeners
+
+```javascript
+var emitter = ee();
+var hasListeners = require('event-emitter/lib/has-listeners');
+var listner = function () {};
+
+hasListeners(emitter); // false
+
+emitter.on('foo', listener);
+hasListeners(emitter); // true
+hasListeners(emitter, 'foo'); // true
+hasListeners(emitter, 'bar'); // false
+
+emitter.off('foo', listener);
+hasListeners(emitter, 'foo'); // false
+```
+
 ## Tests [![Build Status](https://secure.travis-ci.org/medikoo/event-emitter.png?branch=master)](https://secure.travis-ci.org/medikoo/event-emitter)
 
 	$ npm test

Fixed alerts

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

20434

increased by12.84%

Number of package files

21

increased by16.67%

Lines of code

575

increased by8.49%

Number of lines in readme file

97

increased by25.97%

Number of medium supply chain risk alerts

0

decreased by-100%

No dependency changes