7

I'm trying to mimic static variables on a JavaScript function, with the following purpose:

$.fn.collapsible = function() { triggers = $(this).children('.collapse-trigger'); jQuery.each(triggers, function() { $(this).click(function() { collapse = $(this).parent().find('.collapse'); }) }) }

How do I save the "collapse" object so it doesn't have to be "found" on each call? I know that with named functions I could do something like "someFunction.myvar = collapse", but how about anonymous functions like this one?

Thanks!

Improve this question

4 Answers 4

Reset to default
13

You can save your variable in the function, using either functioName.myVar = value or arguments.callee.myVar = value if you don't have the current function name.

arguments.callee is the current function you are in.

Improve this answer
Sign up to request clarification or add additional context in comments.

1 Comment

What about an arrow function?
10

For anonymous function you could use a function that returns a function.

For instance:

var myAnonymousFunction = (function(){ var myFirstStatic = $("#anElement"); var anotherStatic = true; return function(param1,param2) { // myFirstStatic is in scope // anotherStatic also } })();

Should work like a charm and you're assured initialisation code for statics is only executed once.

Improve this answer

Comments

2

It seems that a better answer to this question is found elsewhere on Stack Overflow.

In short, you can actually give anonymous functions names without polluting the namespace, yet still allow self-referencing.

mything.prototype.mymethod = function myKindOfFakeName() { myKindOfFakeName.called = true; }
Improve this answer

Comments

0

As long as you're assigning the function to a variable like that, you should be able to access it as $.fn.collapsible, and thus assign variables as $.fn.collapsible.myvar.

Improve this answer

1 Comment

That wouldn't work because that's not the function I'm trying to attach a variable to. Thanks.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.