How to access other plugin's variables?

[Shaz]

I'm trying to write a patch to make two plugins talk to each other.


The first begins with this:


(function(_) {

"use strict";

_.fileWidth = _.width * 3;
_.fileHeight = _.height * 4;




In the second, I need to access the fileWidth and fileHeight values above.  I've used:


var bitmap = new Bitmap(_.fileWidth, _.fileHeight);




but when I run, I get an error:


ReferenceError


_ is not defined


I could load parameters from one plugin into another and recalculate the values, but I'm hoping there's a more direct way.

 

[Sarlecc]

That is because you are referencing the variables incorrectly I think.


At the end of your first piece of code there should be something like this })(something). So I believe it should be something like the following:

var bitmap = new Bitmap(something.fileWidth, something.fileHeight);

 

[Shaz]

That's perfect!  Thanks so much

 

[Zalerinian]

Yes, and to clarify why, the "_" is just an alias. Another commonly used one is "$". The way it's setup, all the code is inside an anonymous function that's called when the script is being parsed, and for some plugins a class may be passed to the function as it is often referenced/added to/modified. It's just like any other function argument, however, so if you want to get access to values assigned to something aliased that way, you need to know what that object is. 

 

[Kes]

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