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Why is “import *” bad?
...from bar import *
Now, if the bar module has any of the "os", "mystuff", etc... attributes, they will override the explicitly imported ones, and possibly point to very different things. Defining __all__ in bar is often wise -- this states what will implicitly be imported - but still it's hard to t...
Parsing a string into a boolean value in PHP
...s - it handles any casing you can imagine for $value (false, FALSE, FalSe, etc.)
– Eric Caron
Nov 12 '13 at 21:11
Bork...
Format XML string to print friendly XML string
...entation? I do not want any other changes, like "0" being changed to "0.0" etc. When all whitespace is stripped, I want the stripped result-string be exactly the same as the stripped input-string.
– Radim Cernej
Feb 12 '15 at 21:11
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The calling thread cannot access this object because a different thread owns it
... operation progresses, may like to update UI (through RaisePropertyChanged etc), which will in turn try to access a UI control from non-UI thread and thus result in this exception. I don't know of a correct MVVM approach that would solve this problem.
– dotNET
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Face recognition Library [closed]
...roject, which has bundled a lot of these features (detection, recognition, etc.) into a nice software package.
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How to check if the string is empty?
...ould also enter the if not myString: block if myString were None, 0, False etc. So if you aren't sure what type myString is, you should use if myString == "": to determine if it is an empty string as opposed to some other falsy value.
– Andrew Clark
Aug 7 '13 ...
Self-references in object literals / initializers
...s like deleting isn't as bad as it used to be, at least not in V8 (Chrome, etc.) or SpiderMonkey. Still slower, but only a tiny bit, and these things are freaky fast these days.
– T.J. Crowder
May 7 at 16:02
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How to test equality of Swift enums with associated values
... Better: case (.Name(let a), .Name(let b)) : return a == b etc.
– Martin R
Nov 6 '15 at 22:29
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How can I measure the similarity between two images? [closed]
...scaling (once the histogram is normalised), and rotation/shifting/movement etc.
Avoid pixel-by-pixel comparisons as if the image is rotated/shifted slightly it may lead to a large difference being reported.
Histograms would be straightforward to generate yourself (assuming you can get access to pi...
What is the documents directory (NSDocumentDirectory)?
...ortDirectory = 14, // location of application support files (plug-ins, etc) (Library/Application Support)
NSDownloadsDirectory NS_ENUM_AVAILABLE(10_5, 2_0) = 15, // location of the user's "Downloads" directory
NSInputMethodsDirectory NS_ENUM_AVAILABLE(10_6, 4_0) = 16, ...