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Safe characters for friendly url [closed]

I need to make a website that will have articles, and I would like to make friendly URLs for it, example the URL of the page with ...
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AES vs Blowfish for file encryption

...d generally recommend AES. My next choices would probably be Serpent, MARS and Twofish in that order. Blowfish would come somewhere after those (though there are a couple of others that I'd probably recommend ahead of Blowfish). ...
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LEFT JOIN vs. LEFT OUTER JOIN in SQL Server

What is the difference between LEFT JOIN and LEFT OUTER JOIN ? 12 Answers 12 ...
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Structure padding and packing

...alignment of the whole struct in an array */ } x; Packing, on the other hand prevents compiler from doing padding - this has to be explicitly requested - under GCC it's __attribute__((__packed__)), so the following: struct __attribute__((__packed__)) mystruct_A { char a; int b; char c...
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What does “Changes not staged for commit” mean

...made since the last commit. For example, let's say you have file a, file b and file c. You modify file a and file b but the changes are very different in nature and you don't want all of them to be in one single commit. You issue git add a git commit a -m "bugfix, in a" git add b git commit b -m "n...
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Twitter Bootstrap Customization Best Practices [closed]

...otstrap will be frequent, I want to be able to pull down the latest source and make minimal changes by keeping my modifications in separate files. Of course, it's not completely bullet proof. Copy the bootstrap.less and variables.less to the parent directory. Rename bootstrap.less to theme.less ...
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Why are static variables considered evil?

...the corporate world. Recently I've developed an application using Groovy and Java. All through the code I wrote used quite a good number of statics. I was asked by the senior technical lot to cut down on the number of statics used. I've googled about the same, and I find that many programmers are ...
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How to hide element using Twitter Bootstrap and show it using jQuery?

...ated, .hide is available, but it does not always affect screen readers and is deprecated as of v3.0.1 Second, use jQuery's .toggleClass(), .addClass() and .removeClass() <div id="myId" class="hidden">Foobar</div> To show it: $("#myId").removeClass('hidden'); To hide it: $("#myI...
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Why is Go so slow (compared to Java)?

... The 6g and 8g compilers are not particularly optimising, so the code they produce isn't particularly fast. They're designed to run fast themselves and produce code that's OK (there is a bit of optimisation). gccgo uses GCC's existi...
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kernel stack and user space stack

What's the difference between kernel stack and user stack? Why kernel stack is used? If a local variable is declared in an ISR, where it will be stored? Does each process has its own kernel stack? Then how the process coordinates between both these stacks? ...