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events: speed up .removeAllListeners()

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This commit is contained in:
Ben Noordhuis 2012-08-01 01:29:10 +02:00
parent b7fd55e9a0
commit 56668f54d1
1 changed files with 11 additions and 0 deletions
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11
lib/events.js
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@ -239,6 +239,17 @@ EventEmitter.prototype.removeListener = function(type, listener) {
EventEmitter.prototype.removeAllListeners = function(type) {
if (!this._events) return this;
// fast path
if (!this._events.removeListener) {
if (arguments.length === 0) {
this._events = {};
} else if (type && this._events && this._events[type]) {
this._events[type] = null;
}
return this;
}
// slow(ish) path, emit 'removeListener' events for all removals
if (arguments.length === 0) {
for (var key in this._events) {
if (key === 'removeListener') continue;