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Internet Explorer's CSS rules limits

...n regarding Internet Explorer's silly CSS limits. I am (think I am) understanding that you can only have 31 <style> and <link> tags (combined), and that each sheet can have up to 31 @import -s (so 31 <link> -s, each to 31 @import -s is fine, albeit insane). ...
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How do I “un-revert” a reverted Git commit?

Given a change that has been committed using commit , and then reverted using revert , what is the best way to then undo that revert? ...
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How to overcome “datetime.datetime not JSON serializable”?

...h requires no dependencies. As you are using mongoengine (per comments) and pymongo is a dependency, pymongo has built-in utilities to help with json serialization: http://api.mongodb.org/python/1.10.1/api/bson/json_util.html Example usage (serialization): from bson import json_util import json...
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Is it possible to use the instanceof operator in a switch statement?

...en you can simply call do() on this. If you are not free to change A, B, and C, you could apply the visitor pattern to achieve the same. share | improve this answer | follo...
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How can I handle R CMD check “no visible binding for global variable” notes when my ggplot2 syntax i

... warning: aes does while aes_string doesn't define positional parameters x and y. – topchef Oct 18 '13 at 16:50 6 ...
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Add a “hook” to all AJAX requests on a page

...every single AJAX request (either as it's about to get sent, or on events) and perform an action. At this point I'm assuming that there are other third-party scripts on the page. Some of these might use jQuery, while others do not. Is this possible? ...
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How to play audio?

I am making a game with HTML5 and JavaScript. 19 Answers 19 ...
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What is the difference between onPause() and onStop() of Android Activites?

From android doc here http://developer.android.com/reference/android/app/Activity.html , it said 'Activity comes into foreground' will call onPause() , and 'Activity is no longer visible' will call onStop() . ...
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Android LinearLayout : Add border with shadow around a LinearLayout

... this.. <?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item> <shape android:shape="rectangle"> <solid android:color="#CABBBBBB"/> <corners android:radius="2dp" />...
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Is a LINQ statement faster than a 'foreach' loop?

I am writing a Mesh Rendering manager and thought it would be a good idea to group all of the meshes which use the same shader and then render these while I'm in that shader pass. ...