I'm trying to do...
EventEmitter = require('events').EventEmitter
events = new EventEmitter()
events.emit.apply(null, ['eventname', 'arg1', 'arg2', 'arg3'])
...but it doesn't seem to work or throw an error, any help?
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boom
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2 Answers
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On Apply method you need inform two arguments: A valid scope (what value will be the "this" inside the method) and the argument array.
Everton Tavares
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Right, yes, I do this. – boom Sep 19 '13 at 20:49
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Try pass a valid scope – Everton Tavares Sep 19 '13 at 20:50
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`null` and `undefined` will be replaced with the global object, no? – boom Sep 19 '13 at 20:52
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I guess thats only in the browser maybe? Thanks – boom Sep 19 '13 at 20:54
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I think the emit() function of the EventEmitter is expecting this to be an actual EventEmitter object. The following seems to work if you pass in the events object.
events.emit.apply(events, ['eventname', 'arg1', 'arg2', 'arg3'])
Though at this point, might as well just call
emit('eventname', 'arg1', 'arg2', 'arg3')
I am guessing the emit() method is looping over an internal list of registered events to see if there is a matching one. Not sure if this helps, just something I came across today working with events...
cengebretson
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