A.prototype.a (cb) {
// I do something here
cb(null, someData);
};
A.prototype.b () {
self = this;
// it could be `this.a` as well.
self.a(function (err, response) {
self.c(response); // will work
this.c(response); // wont work
});
};
A.prototype.c (data) {
console.log(data);
};
It's all about the scope. `this` is local to each function.
http://ejohn.org/apps/learn/ can be of great help understanding this
kind of things (and a lot more)
On 4/21/14, 3:11 PM, Reza Razavipour wrote:
> I see a lot of code that does
> var self = this
>
> and then they use self instead of this for the duration of the function?
>
> Why and when would you use the above pattern?
>
>
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