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event.returnValue is deprecated. Please use the standard event.preventDefault() instead

...he future as the method is deprecated. See the relevant source of Chromium and corresponding patch. This has already been recognised and fixed in jQuery 1.11 (see here and here). share | improve th...
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How can I split and parse a string in Python?

...a fact that the string contains an underscore, you can even unpack the LHS and RHS into separate variables: In [8]: lhs, rhs = "2.7.0_bf4fda703454".split("_", 1) In [9]: lhs Out[9]: '2.7.0' In [10]: rhs Out[10]: 'bf4fda703454' An alternative is to use partition(). The usage is similar to the la...
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How do I give text or an image a transparent background using CSS?

...r: rgba(255, 0, 0, 0.5); Here's an article from css3.info, Opacity, RGBA and compromise (2007-06-03). <p style="background-color: rgba(255, 0, 0, 0.5);"> <span>Hello, World!</span> </p> ...
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How to overload __init__ method based on argument type?

... reason it's neater is that there is no doubt about what type is expected, and you aren't forced to guess at what the caller intended for you to do with the datatype it gave you. The problem with isinstance(x, basestring) is that there is no way for the caller to tell you, for instance, that even th...
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Resolve build errors due to circular dependency amongst classes

...t this is to "think like a compiler". Imagine you are writing a compiler. And you see code like this. // file: A.h class A { B _b; }; // file: B.h class B { A _a; }; // file main.cc #include "A.h" #include "B.h" int main(...) { A a; } When you are compiling the .cc file (remember that th...
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How can I validate a string to only allow alphanumeric characters in it?

...n use LINQ: if (yourText.All(char.IsLetterOrDigit)) { //just letters and digits. } yourText.All will stop execute and return false the first time char.IsLetterOrDigit reports false since the contract of All cannot be fulfilled then. Note! this answer do not strictly check alphanumerics (whi...
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Running a specific test case in Django when your app has a tests directory

...lan. Encountered the same problem as hekevintran. Switched to django-nose and it fixed that issue, also works much better than the default Django test runner. – LeeMobile May 6 '11 at 15:29 ...
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What is the fundamental difference between WebSockets and pure TCP?

I've read about WebSockets and I wonder why browser couldn't simply open trivial TCP connection and communicate with server like any other desktop application. And why this communication is possible via websockets? ...
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What is array to pointer decay?

...mbers = 0x5a5aff23. More importantly the term decay signifies loss of type and dimension; numbers decay into int* by losing the dimension information (count 5) and the type is not int [5] any more. Look here for cases where the decay doesn't happen. If you're passing an array by value, what you're ...
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How can I generate UUID in C#

...g an .idl file programmatically. How do I create UUIDs for the interfaces and Methods Programmatically. 5 Answers ...