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Pushing a variable outside of a function

Answer 1

A:

window.fString = fString

Then in your function you can reference window.fString in other functions

cjavapro 2010-10-06 23:51:33

Answer 2

+3 A:

You don't need to put them in a global context using window.fString, you can just move your var declarations outside of the $.getJSON.

In javascript closures will allow access to variables defined outside a function, but any vars defined in the function will not be accessible outside.

var fString, tString;

$.getJSON(... , function(){
  fString = ...;
});

Any functions defined in the same scope s $.getJSON will also have access to fString and tString

brad 2010-10-06 23:55:57

Answer 3

A:

Define these variables anywhere that is in scope for both your getJSON call and the other functions. Ideally you wouldn't define them on the global window object, as that is the most amount of overkill you can get. Additionally, you could attach them as data to some arbitrary part of your markup (I use the <body>). You could do that like so:

$('body').data('fstring', ($('<div id="userimage"><h1>'+ data.followers_count +'</h1></div>').digits()).text());
$('body').data('tString', ($('<div id="userimage"><h1>'+ data.statuses_count +'</h1></div>').digits()).text());

Those values can then be accessed as such:

var fString = $('body').data('fstring');
var tString = $('body').data('tstring');

You could also use .data() to store that data values that come back from your getJSON request, so that those can be accessed later as well.

Here are the docs for .data(): http://docs.jquery.com/Data

And here's a demo of using data to access a value set from another function: http://jsfiddle.net/9zcET/

Ender 2010-10-07 00:00:01

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