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Generate a Hash from string in Javascript

...ash = ((hash << 5) - hash) + chr; hash |= 0; // Convert to 32bit integer } return hash; } }); Source: http://werxltd.com/wp/2010/05/13/javascript-implementation-of-javas-string-hashcode-method/ share...
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What is a “static” function in C?

...to other functions in the same file (more precisely the same translation unit). EDIT: For those who thought, that the author of the questions meant a 'class method': As the question is tagged C he means a plain old C function. For (C++/Java/...) class methods, static means that this method can be c...
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Why an interface can not implement another interface?

...ion. A 100% abstract class is functionally equivalent to an interface but it can also have implementation if you wish (in this case it won't remain 100% abstract), so from the JVM's perspective they are different things. Also the member variable in a 100% abstract class can have any access qualifi...
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How can I run code on a background thread on Android?

I want some code to run in the background continuously. I don't want to do it in a service. Is there any other way possible? ...
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The input is not a valid Base-64 string as it contains a non-base 64 character

I have a REST service that reads a file and sends it to another console application after converting it to Byte array and then to Base64 string. This part works, but when the same stream is received at the application, it gets manipulated and is no longer a valid Base64 string. Some junk characters ...
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Replace input type=file by an image

... people, I'd like to customize the ugly input type=file , and I know that it can't be done without some hacks and/or javascript . But, the thing is that in my case the upload file buttons are just for uploading images ( jpeg|jpg|png|gif ), so I was wondering if I could use a " clickable " image wh...
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Why does Google +1 record my mouse movements? [closed]

This is only on pages with a Google +1 box on my website: 9 Answers 9 ...
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Isn't it silly that a tiny favicon requires yet another HTTP request? How can I put the favicon into

... that these browsers still can't: Safari iOS Safari Firefox for Android With the above in mind, we can now use SVG Favicons with a reasonable degree of confidence. 2) Present the SVG as a Data URI The main objective here is to avoid HTTP Requests. As other solutions on this page have mentioned, a...
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In which scenario do I use a particular STL container?

... STL containers in my book on C++, specifically the section on the STL and its containers. Now I do understand each and every one of them have their own specific properties, and I'm close to memorizing all of them... But what I do not yet grasp is in which scenario each of them is used. ...
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What is the best way to ensure only one instance of a Bash script is running? [duplicate]

...st way to ensure only one instance of a given script is running - assuming it's Bash on Linux? 14 Answers ...