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What special characters must be escaped in regular expressions?

...nds on the regex flavor you're working with. For PCRE, and most other so-called Perl-compatible flavors, escape these outside character classes: .^$*+?()[{\| and these inside character classes: ^-]\ For POSIX extended regexes (ERE), escape these outside character classes (same as PCRE): .^$*...
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Eclipse: Can you format code on save?

...checking your eclipse format xml descriptor into source control. That way all members of the team can use it and you don't get to and fro reformatting battles. share | improve this answer ...
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How to detect if JavaScript is disabled?

...gt; to unhide (no reflow there if JS enabled). Surprisingly, this works in all modern browsers, and even in IE6 – Piskvor left the building Jul 16 '10 at 14:31 ...
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Do you need break in switch when return is used?

...se return instead of break... break is optional and is used to prevent "falling" through all the other case statements. So return can be used in a similar fashion, as return ends the function execution. Also, if all of your case statements are like this: case 'foo': $result = find_result(...)...
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Regular expression for a hexadecimal number?

... If you're using Perl or PHP, you can replace [0-9a-fA-F] with: [[:xdigit:]] share | improve this answer | follow ...
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Security of REST authentication schemes

...s answer only mentioned SSL in the context of data transfer and didn't actually cover authentication. You're really asking about securely authenticating REST API clients. Unless you're using TLS client authentication, SSL alone is NOT a viable authentication mechanism for a REST API. SSL without ...
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Test if executable exists in Python?

... search for set in %PATHEXT%. That's not great, but it might work for the all the cases someone needs. – rakslice Oct 3 '13 at 0:42 ...
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Encoding Javascript Object to Json string

...e looking for. var json = JSON.stringify(new_tweets); You can also do it all at once: var new_tweets = { k: { tweet_id: 98745521, user_id: 54875, data: { in_reply_to_screen_name: 'other_user', text: 'tweet_text' } } } ...
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Testing Abstract Classes

...ted, you need means to UT the concrete methods of abstract classes. Personally, I use PHPUnit, and it has so called stubs and mock objects to help you testing this kind of things. Straight from PHPUnit manual: abstract class AbstractClass { public function concreteMethod() { retur...
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Why is the Android emulator so slow? How can we speed up the Android emulator? [closed]

...ot. Android Development Tools (ADT) 9.0.0 (or later) has a feature that allows you to save state of the AVD (emulator), and you can start your emulator instantly. You have to enable this feature while creating a new AVD or you can just create it later by editing the AVD. Also I have increased th...