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I want to ask the Stack Overflow owners: what JavaScript library is used in Stack Overflow help section?

I like the animation that occurs when a part of the page is reached by scroll or just navigation to bottom of page.

I mean when you press Start tour button then you'll be redirected to that page.

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4  
why don't you just check the source? –  Jan Dvorak Oct 2 '13 at 18:09
3  
because it's minified –  Snake Eyes Oct 2 '13 at 18:10
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jQuery. It is always jQuery. –  Oded Oct 2 '13 at 18:11
    
But can you explain what part of the help section? Do you mean the about page? –  Oded Oct 2 '13 at 18:12
    
When press Start tour then you'll be redirected to that page –  Snake Eyes Oct 2 '13 at 18:13
1  
So, this page? –  Oded Oct 2 '13 at 18:14
    
Yes, that page, I edited my answer –  Snake Eyes Oct 2 '13 at 18:14
    
@SnakeEyes answer, you say? –  Jan Dvorak Oct 2 '13 at 18:16
    
It's nothing more than detecting the scroll position and showing elements. No plugins involved. –  Kevin B Oct 2 '13 at 18:22
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1 Answer

up vote 8 down vote accepted

It is not a library; this is a custom implementation by the Stack Exchange team.

This approach is known as parallax web design, and usually involves moving elements in response to a user scrolling.

The animation leverages the jQuery API, but other than a few shortcuts jQuery provides, jQuery itself has nothing to do with it.

You can see the script here. (I hope I didn't offend anyone by showing the script link)

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Yeah, pretty much this. –  Oded Oct 2 '13 at 18:28
1  
You could also run it through a beautifier: jsbeautifier.org –  mikeTheLiar Oct 2 '13 at 18:52
    
So it's run through a minifier, but variable and function names aren't obfuscated? If you're going for bandwidth saving, you kindof need to "minify" the variables. –  Cole Johnson Oct 2 '13 at 19:26
3  
You know that you can access the source before it's been minified –  icktoofay Oct 3 '13 at 1:50
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