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Validate phone number with JavaScript
I found this code in some website, and it works perfectly. It validates that the phone number is in one of these formats:
(123) 456-7890 or 123-456-7890
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Why is arr = [] faster than arr = new Array?
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Why are preprocessor macros evil and what are the alternatives?
... then
if (something) safe_divide(b, a, x);
else printf("Something is not set...");
It actually becomes completely the wrong thing....
Replacement: real functions.
3) Macros have no namespace
If we have a macro:
#define begin() x = 0
and we have some code in C++ that uses begin:
std::vec...
Returning from a finally block in Java
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NSOperation vs Grand Central Dispatch
...uses. GCD has no real concept of dependencies, where NSOperationQueues can set up pretty complex dependency graphs. I use NSOperationQueues for this in a handful of cases.
Overall, while I usually advocate for using the highest level of abstraction that accomplishes the task, this is one case where...
Is there a better Windows Console Window? [closed]
...ief excerpt from the long list of options:
Latest versions of ConEmu may set up itself as default terminal for Windows
Use any font installed in the system, or copied to a folder of the program (ttf, otf, fon, bdf)
Run selected tabs as Administrator (Vista+) or as selected user
Windows 7 Jump list...
HTML5 dragleave fired when hovering a child element
...this).removeClass('red');
}
}
});
Note: In the drop event, reset counter to zero, and clear the added class.
You can run it here
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Initialize a nested struct
I cannot figure out how to initialize a nested struct. Find an example here:
http://play.golang.org/p/NL6VXdHrjh
8 Answers...
Regular Expressions and negating a whole character group [duplicate]
...r class such as [^ab] will match a single character that is not within the set of characters. (With the ^ being the negating part).
To match a string which does not contain the multi-character sequence ab, you want to use a negative lookahead:
^(?:(?!ab).)+$
And the above expression disected in...
Getting the array length of a 2D array in Java
I need to get the length of a 2D array for both the row and column. I’ve successfully done this, using the following code:
...