JQM: How to break while debugging in a JS file loaded through $.mobile.changePage()
Question
I am developing a mobile app using jQuery, jQuery mobile (and PhoneGap, but that is not relevant). Let's say I have two html pages: page1.html and page2.html. I am loading page2.html using $.mobile.changePage() from page1.html. The page div in page2.html (ie, the div having data-role="page") contains javascript code that is specific to page2, which also gets loaded with page2.html. The code in page2.html looks something like this:
<!DOCTYPE HTML>
<html>
<head>
<title>Title</title>
</head>
<body>
<div id="conf-page" data-role="page">
<script type="text/javascript" charset="utf-8">
<!-- MY SCRIPT HERE ----->
</script>
<div data-role="header" style="height: 45px">
Now I want to break somewhere in the javascript code in page2.html. For the time being, I am using Firefox (16.0.2) and Firebug to develop and debug. When page2.html is loaded, I see the JS code of page2.html at two places in firebug Scripts list:
- At jQuery.min.js/eval/MD5/
- At jQuery.min.js/eval/seq/<#>
If I put a breakpoint somewhere in one of the codes, it get applied to the code in (1) above, but it is never hit when page2.html is loaded.
How to go about setting a breakpoint and breaking somewhere in the JS code in page2.html? I couldn't find anything relevant on the web, which makes me think that I must be missing something, as this must be a pretty common requirement.
1 answers
solution1
0 ACCPTED 2012-11-11 21:53:44
Looks like I was searching for different terms. There has been some discussions on this problem in this site. Here are a few references:
- dynamically loaded js function does not appear in Firebug js debugger
- Scripts added via jQuery not visible in FireBug
- Debugging scripts added via jQuery getScript function
- A few other ones.
There are two solutions suggested in the above threads:
- Most of these threads suggest the same solution: use the "debugger;" statement (w/o the quotes) twice in the code for the FireBug debugger to stop. I did that, and it was a partial solution: the firebug did break, but the variable stack was empty. So this wasn't very useful.
- Put the script in a file, use an AJAX Get call to load the script with crossdomain set to true, and that gets the script file, loads it and the script file shows in debugger. That can be used now to set breakpoints etc. More useful than above.
Keeping open to see if there are other solutions.
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