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Fastest way to check if a string matches a regexp in ruby?
... avoids object allocations performed by other methods such as Regexp#match and =~:
Regexp#match?
Added Regexp#match?, which executes a regexp match without creating a back reference object and changing $~ to reduce object allocation.
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URL to load resources from the classpath in Java
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Intro and basic Implementation
First up, you're going to need at least a URLStreamHandler. This will actually open the connection to a given URL. Notice that this is simply called Handler; this allows you to specify java -Djava...
How to define a preprocessor symbol in Xcode
...o your Target or Project settings, click the Gear icon at the bottom left, and select "Add User-Defined Setting". The new setting name should be GCC_PREPROCESSOR_DEFINITIONS, and you can type your definitions in the right-hand field.
Per Steph's comments, the full syntax is:
constant_1=VALUE const...
Does :before not work on img elements?
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The before and after pseudo-selectors don't insert HTML elements — they insert text before or after the existing content of the targeted element. Because image elements don't contain text or have descendants, neither img:before or im...
adb not finding my device / phone (MacOS X)
Doing Android development on a Mac and this very new phone I have doesn't show up in the devices list in adb . Lots of other phones and devices work fine for me so I know my setup is good.
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Why does ReSharper tell me “implicitly captured closure”?
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The warning tells you that the variables end and start stay alive as any of the lambdas inside this method stay alive.
Take a look at the short example
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
int i = 0;
Random g = new Random();
t...
How can I create a link to a local file on a locally-run web page?
...want to download the file.
Modern versions of many browsers (e.g. Firefox and Chrome) will refuse to cross from the http protocol to the file protocol to prevent malicious behaviour. You'll need to open your webpage locally using the file protocol if you want to do this stuff at all.
Why does it g...
How to specialize std::hash::operator() for user-defined type in unordered containers?
To support user-defined key types in std::unordered_set<Key> and std::unordered_map<Key, Value>
one has to provide operator==(Key, Key) and a hash functor:
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Do the parentheses after the type name make a difference with new?
...e.
Sometimes the memory returned by the new operator will be initialized, and sometimes it won't depending on whether the type you're newing up is a POD (plain old data), or if it's a class that contains POD members and is using a compiler-generated default constructor.
In C++1998 there are 2 typ...
Capitalize words in string [duplicate]
...t capitalized.
capitalize(' javascript'); // -> ' Javascript'
can handle national symbols and accented letters.
capitalize('бабушка курит трубку'); // -> 'Бабушка Курит Трубку'
capitalize('località àtilacol') // -> 'Località Àtilacol'
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