Great, thanks
On Friday, September 5, 2014 1:22:36 AM UTC-7, greelgorke wrote:
>
> 'this' the same as 'a'. Your declaration of b is weird lead to an error,
> because EventEmitter.prototype is an object.
>
> Am Freitag, 5. September 2014 05:27:26 UTC+2 schrieb Jazear Brooks:
>>
>> Consider the following function assignment:
>>
>> var EventEmitter = require("events").EventEmitter;
>>
>> EventEmitter.prototype.once = function(type, callback) { var that = this;
>>
>> this.on(type, function listener() {
>> that.removeListener(type, listener);
>> callback.apply(that, arguments);
>>
>>
>> }); };
>>
>> Also consider the following two variables:
>>
>> var a = new EventEmitter
>> var b = new EventEmitter.prototype
>>
>>
>> Does the `this` on line 5 of the first code section refer to variables a,
>> b, or both? Is variable b even declared legally?
>>
>
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