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Allow to remove all EventEmitter listeners at once
This patch adds support for calling EventEmitter#removeAllListeners with no parameters in order to remove all listeners as once. See discussion: https://groups.google.com/forum/#!topic/nodejs-dev/Mcyal1ThTHY Closes GH-889.
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@ -56,9 +56,9 @@ Remove a listener from the listener array for the specified event.
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server.removeListener('connection', callback);
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#### emitter.removeAllListeners(event)
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#### emitter.removeAllListeners([event])
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Removes all listeners from the listener array for the specified event.
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Removes all listeners, or those of the specified event.
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#### emitter.setMaxListeners(n)
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@ -188,6 +188,11 @@ EventEmitter.prototype.removeListener = function(type, listener) {
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};
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EventEmitter.prototype.removeAllListeners = function(type) {
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if (arguments.length === 0) {
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this._events = {};
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return this;
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}
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// does not use listeners(), so no side effect of creating _events[type]
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if (type && this._events && this._events[type]) this._events[type] = null;
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return this;
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@ -0,0 +1,43 @@
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// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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var common = require('../common');
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var assert = require('assert');
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var events = require('events');
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function listener() {}
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var e1 = new events.EventEmitter();
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e1.addListener('foo', listener);
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e1.addListener('bar', listener);
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e1.removeAllListeners('foo');
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assert.deepEqual([], e1.listeners('foo'));
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assert.deepEqual([listener], e1.listeners('bar'));
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var e2 = new events.EventEmitter();
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e2.addListener('foo', listener);
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e2.addListener('bar', listener);
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e2.removeAllListeners();
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console.error(e2);
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assert.deepEqual([], e2.listeners('foo'));
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assert.deepEqual([], e2.listeners('bar'));
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