> To be able to access parent scope you are able to do like this: (just declare
> a local variable in the function which includes your function)
>
> var that = this;
> var myDebug = function(p_myString) {
> that.debug(p_myString);
> return true;
> };
>
> Or if you want to change the function scope / context totally: (use the bind
> function, qooxdoo provides an polyfill for bind to support older browsers)
>
> var myDebug = function(p_myString) {
> this.debug(p_myString);
> return true;
> }.bind(this);
Excellent and very elegant examples.
Very easy to understand, makes perfect sense (which, in my case, is not always
obvious), and yet I would have never thought of such approach.
What it means is that I found them very educational.
> But my advice to you would be to declare any function in the members section
> of qooxdoo classes. If you do so the scope is "normally" set to the class
> instance, expect calling member functions through a callback mechanism, in
> that case you have to set the scope manually, e.g. this.addListener("appear",
> this._onAppear, this);
>
> But you could re structure your code in such a way:
> ...
> members :
> {
> main: function() {
> this.myDebug("Indirect debug via myDebug().");
> },
>
> myDebug : function(p_myString) {
> this.debug(p_myString);
> return true;
> }
> }
Noted.
Thank you, Mustafa!
All your suggestions were very helpful and I truly appreciate them.
Regards,
Keve Nagy * Debrecen * Hungary
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