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Clear variable in python

... Open the python terminal and type print x and press enter. This will produce an interpreter error, as do most languages when you try to print an undefined variable. But if you define the variable, and then try to clear it with None, using the print ...
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How to import a jar in Eclipse

...igure Build Path. Under Libraries tab, click Add Jars or Add External JARs and give the Jar. A quick demo here. The above solution is obviously a "Quick" one. However, if you are working on a project where you need to commit files to the source control repository, I would recommend adding Jar fil...
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VS2010 and IE10 Attaching the Script debugger to process iexplore.exe failed

So I am using Win7 x64 with VS2010 and have installed the IE10 Win7 Preview and ReSharper 6.1. 12 Answers ...
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nil detection in Go

...mpiler is pointing the error to you, you're comparing a structure instance and nil. They're not of the same type so it considers it as an invalid comparison and yells at you. What you want to do here is to compare a pointer to your config instance to nil, which is a valid comparison. To do that you...
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Can a div have multiple classes (Twitter Bootstrap) [duplicate]

... can have as many classes as you want (this is both regarding to bootstrap and HTML in general): <div class="active dropdown-toggle"></div> Just separate the classes by space. Also: Keep in mind some bootstrap classes are supposed to be used for the same stuff but in different cases ...
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What does the git index contain EXACTLY?

What does the Git index exactly contain, and what command can I use to view the content of the index? 5 Answers ...
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Why does this code segfault on 64-bit architecture but work fine on 32-bit?

...has an entry discussing why casting the return from malloc is never needed and potentially bad. share | improve this answer | follow | ...
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Javascript switch vs. if…else if…else

...le states that there is a negligible performance difference between switch and if/then statements in JS. The article states this is due to spotty switch optimization and the different ways different JS engines function. Quote: Since most JavaScript engines don’t have such optimizations, performanc...
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“Connection for controluser as defined in your configuration failed” with phpMyAdmin in XAMPP

I have just installed XAMPP on my Windows XP machine, and I get an error saying: 12 Answers ...
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How to specify test directory for mocha?

.../#mochaopts If you want to do it by still just running mocha on the command line, but wanted to run the tests in a folder ./server-tests instead of ./test, create a file at ./test/mocha.opts with just this in the file: server-tests If you wanted to run everything in that folder and subdirector...