Commits on Nov 12, 2013

1. events: don't call once twice …

   Emitting an event within a `EventEmitter#once` callback of the same
   event name will cause subsequent `EventEmitter#once` listeners of the
   same name to be called multiple times.
   
       var emitter = new EventEmitter();
   
       emitter.once('e', function() {
         emitter.emit('e');
         console.log(1);
       });
   
       emitter.once('e', function() {
         console.log(2);
       });
   
       emitter.emit('e');
   
       // Output
       // 2
       // 1
       // 2
   
   Fix the issue, by calling the listener method only if it was not
   already called.

   

   timrwood authored and indutny committed Nov 12, 2013
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   c9d93f3 View commit details

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