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Check if $_POST exists

...sts and if it does, print it inside another string, if not, don't print at all. 14 Answers ...
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How to manually create icns files using iconutil?

...following instructions (link): Use iconutil to Create an icns File Manually The iconutil command-line tool converts iconset folders to deployment-ready, high-resolution icns files. (You can find complete documentation for this tool by entering man iconutil in Terminal.) Using this tool al...
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What is the purpose of Flask's context stacks?

...backend". In other words, the Flask(...) application constructor has been called twice, creating two instances of a Flask application. Contexts When you are working with Flask, you often end up using global variables to access various functionality. For example, you probably have code that reads.....
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Naming convention - underscore in C++ and C# variables

... in a class field. What does the underscore mean? Is there a reference for all these special naming conventions? 19 Answers...
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php - get numeric index of associative array

... to find the numeric position of a key. I could loop through the array manually to find it, but is there a better way build into PHP? ...
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How to import the class within the same directory or sub directory?

I have a directory that stores all the .py files. 13 Answers 13 ...
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Why must a lambda expression be cast when supplied as a plain Delegate parameter

...m goes away (qv Skeet's anwer) and we have this very succinct syntax: int foo = 5; public void SomeMethod() { var bar = "a string"; UI(() => { //lifting is marvellous, anything in scope where the lambda //expression is defined is available to the asynch code someTextBlock.Text ...
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Tests not running in Test Explorer

...ts. I have been working with the resharper test runner - which works fine. All tests are running, all tests are showing the right test outcome. Now a coworker told me, that the tests are not running on his machine using the Visual Studio test explorer. They are not working either on my machine, so i...
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How to avoid having class data shared among instances?

...problem you face is that x.list and y.list are the same list, so when you call append on one, it affects the other. – Matt Moriarity Nov 5 '09 at 14:04 ...
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Inheritance and Overriding __init__ in python

... The book is a bit dated with respect to subclass-superclass calling. It's also a little dated with respect to subclassing built-in classes. It looks like this nowadays: class FileInfo(dict): """store file metadata""" def __init__(self, filename=None): super(FileInfo,...