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Bitwise operation and usage

...ators that work on multi-bit values, but conceptually one bit at a time. AND is 1 only if both of its inputs are 1, otherwise it's 0. OR is 1 if one or both of its inputs are 1, otherwise it's 0. XOR is 1 only if exactly one of its inputs are 1, otherwise it's 0. NOT is 1 only if its input is 0, o...
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What is the difference between localStorage, sessionStorage, session and cookies?

What are the technical pros and cons of localStorage, sessionStorage, session and cookies, and when would I use one over the other? ...
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Controlling fps with requestAnimationFrame?

...e for the most part, but right now I'm trying to do some canvas animations and I was wondering: Is there any way to make sure it runs at a certain fps? I understand that the purpose of rAF is for consistently smooth animations, and I might run the risk of making my animation choppy, but right now it...
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SPA best practices for authentication and session management

..., etc. what do people believe to be some best practices for authentication and session management? I can think of a couple of ways of considering approaching the problem. ...
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What are the differences between WCF and ASMX web services?

I am totally confused between WCF and ASMX web services. I have used a lot of web services in my earlier stage, and now there is this new thing introduced called WCF. I can still create WCF that function as a web service. I think there will be more stuff in WCF. ...
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How do servlets work? Instantiation, sessions, shared variables and multithreading

...ervlets. For information passing among those servlets I am setting session and instance variables. 8 Answers ...
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Difference between android-support-v7-appcompat and android-support-v4

I wanted to know the difference between android-support-v4.jar and android-support-v7-appcompat.jar . If I want to add appcompat Action Bar in my application do I need to add both android-support-v7-appcompat.jar and android-support-v4.jar or only android-support-v7-appcompat.jar . ...
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What does auto do in margin:0 auto?

... parameter basically tells the browser to automatically determine the left and right margins itself, which it does by setting them equally. It guarantees that the left and right margins will be set to the same size. The first parameter 0 indicates that the top and bottom margins will both be set to ...
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Solr vs. ElasticSearch [closed]

...ng in this regard as well: There are many comparisons between Apache Solr and ElasticSearch available, so I'll reference those I found most useful myself, i.e. covering the most important aspects: Bob Yoplait already linked kimchy's answer to ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fit...
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What is Python used for? [closed]

What is Python used for and what is it designed for? 2 Answers 2 ...