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iPhone App Icons - Exact Radius?

...now how to get the exact radius that the iPhone's icons use. I've searched and searched for a tutorial or a template but can't find one. ...
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How to validate an Email in PHP?

... You can use the filter_var() function, which gives you a lot of handy validation and sanitization options. filter_var($email, FILTER_VALIDATE_EMAIL) PHP Manual filter_var() Available in PHP >= 5.2.0 If you don't want to change your code that relied on your function, just do: func...
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Difference between document.addEventListener and window.addEventListener?

... The document and window are different objects and they have some different events. Using addEventListener() on them listens to events destined for a different object. You should use the one that actually has the event you are interested...
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Turn a number into star rating display using jQuery and CSS

I have been looking at jquery plugin and was wondering how to adapt that plugin to turn a number (like 4.8618164) into a 4.8618164 stars filled out of 5. Basically interpreting a number ...
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How does Hadoop process records split across block boundaries?

...nteresting question, I spent some time looking at the code for the details and here are my thoughts. The splits are handled by the client by InputFormat.getSplits, so a look at FileInputFormat gives the following info: For each input file, get the file length, the block size and calculate the spli...
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How to randomize (shuffle) a JavaScript array?

...github.com/coolaj86/knuth-shuffle You can see a great visualization here (and the original post linked to this) function shuffle(array) { var currentIndex = array.length, temporaryValue, randomIndex; // While there remain elements to shuffle... while (0 !== currentIndex) { //...
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Git pull without checkout?

I'm used to running git pull and other commands from within a branch I'm working on. But I have set up a development server that several people work on, so I don't want to have to switch branches when I do it. If I want to update an existing branch on the dev server from the github repository we a...
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What exactly are iterator, iterable, and iteration?

What is the most basic definition of "iterable", "iterator" and "iteration" in Python? 13 Answers ...
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How do I update a Python package?

I'm running Ubuntu 9:10 and a package called M2Crypto is installed (version is 0.19.1). I need to download, build and install the latest version of the M2Crypto package (0.20.2). ...
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Nullable Foreign Key bad practice?

...hat bad practice or would you rather work with a link table between Orders and Customers? Although the relationship is 1 to n, a link table would make it n to n. On the other hand, with a link table, I don't have those NULLS anymore... ...