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Check if class already assigned before adding

In jQuery, is it recommended to check if a class is already assigned to an element before adding that class? Will it even have any effect at all? ...
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Reload django object from database

Is it possible to refresh the state of a django object from database? I mean behavior roughly equivalent to: 4 Answers ...
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Why do we use $rootScope.$broadcast in AngularJS?

Tried to find some basic information for AngularJS $rootScope.$broadcast , But the AngularJS documentation doesn't help much. In easy words why do we use this? ...
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git - Your branch is ahead of 'origin/master' by 1 commit

I am newbie in git and I am working on git. 6 Answers 6 ...
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Using lambda expressions for event handlers

I currently have a page which is declared as follows: 4 Answers 4 ...
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How to modify memory contents using GDB?

I know that we can use several commands to access and read memory: for example, print, p, x... 3 Answers ...
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Custom error pages on asp.net MVC3

I'm developing a MVC3 base website and I am looking for a solution for handling errors and Render custom Views for each kind of error. So imagine that I have a "Error" Controller where his main action is "Index" (generic error page) and this controller will have a couple more actions for the errors ...
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Checking if a key exists in a JavaScript object?

How do I check if a particular key exists in a JavaScript object or array? 22 Answers ...
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How do I analyze a program's core dump file with GDB when it has command-line parameters?

My program operates like this: 9 Answers 9 ...
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Is AngularJS just for single-page applications (SPAs)?

We are looking at options to build the front end of an application we are creating and are trying to evaluate a tool that will work for us and give us the best platform to move forward. ...