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is_file or file_exists in PHP

...rk to work, you should add clearstatcache(); since the results for is_file and file_exists are cached throughout the script. Anyways file_exists() is a bit slower, but shouldn't make any difference unless you perform around 100K file checks. php.net/manual/en/function.clearstatcache.php ...
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Python: Get the first character of the first string in a list?

...ripped up here because they are mixing up operators of Python list objects and operators of Numpy ndarray objects: Numpy operations are very different than python list operations. Wrap your head around the two conflicting worlds of Python's "list slicing, indexing, subsetting" and then Numpy's "...
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Map and Reduce in .NET

What scenarios would warrant the use of the " Map and Reduce " algorithm? 3 Answers 3 ...
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Pythonic way of checking if a condition holds for any element of a list

I have a list in Python, and I want to check if any elements are negative. Specman has the has() method for lists which does: ...
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Making WPF applications look Metro-styled, even in Windows 7? (Window Chrome / Theming / Theme)

I like the window chrome on the new Office Suite and Visual Studio: 6 Answers 6 ...
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Java JUnit: The method X is ambiguous for type Y

I had some tests working fine. Then, I moved it to a different package, and am now getting errors. Here is the code: 3 Answ...
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What is the meaning of id?

I am (trying to) learn Objective-C and I keep coming across a phrase like: 5 Answers 5...
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What is the difference between Numpy's array() and asarray() functions?

What is the difference between Numpy's array() and asarray() functions? When should you use one rather than the other? They seem to generate identical output for all the inputs I can think of. ...
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how to “reimport” module to python then code be changed after import

...are passing to reload a module?. eg. You should be doing import foo beforehand – John La Rooy Nov 6 '12 at 3:25 27 ...
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How to position a DIV in a specific coordinates?

... Script its left and top properties as the number of pixels from the left edge and top edge respectively. It must have position: absolute; var d = document.getElementById('yourDivId'); d.style.position = "absolute"; d.style.left = x_pos+'px...