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How can I get a view's current width and height when using autolayout constraints?
I'm not talking about the frame property, because from that you can only get the view's size in the xib. I'm talking about when the view is resized because of its constraints (maybe after a rotation, or in response to an event). Is there a way to get its current width and height?
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How to convert floats to human-readable fractions?
Let's say we have 0.33 , we need to output 1/3 .
If we have 0.4 , we need to output 2/5 .
26 Answers
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Common use-cases for pickle in Python
...d at the pickle documentation, but I don't understand where pickle is useful.
9 Answers
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What does the construct x = x || y mean?
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It means the title argument is optional. So if you call the method with no arguments it will use a default value of "Error".
It's shorthand for writing:
if (!title) {
title = "Error";
}
This kind of shorthand trick with boolean expressions is common in Perl too. W...
Convert xlsx to csv in Linux with command line
I'm looking for a way to convert xlsx files to csv files on Linux.
10 Answers
10
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Windows recursive grep command-line
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findstr can do recursive searches (/S) and supports some variant of regex syntax (/R).
C:\>findstr /?
Searches for strings in files.
FINDSTR [/B] [/E] [/L] [/R] [/S] [/I] [/X] [/V] [/N] [/M] [/O] [/P] [/F:file]
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Javascript Shorthand for getElementById
... any shorthand for the JavaScript document.getElementById? Or is there any way I can define one? It gets repetitive retyping that over and over .
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Fatal error: use of unimplemented initializer 'init(coder:)' for class
I decided to continue my remaining project with Swift. When I add the custom class (subclass of UIViewcontroller ) to my storyboard view controller and load the project, the app crashes suddenly with the following error:
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Git - How to use .netrc file on Windows to save user and password
Is it possible to use a .netrc file on Windows when I'm using Git to clone a remote repository with HTTP and user - password?
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multiprocessing.Pool: When to use apply, apply_async or map?
I have not seen clear examples with use-cases for Pool.apply , Pool.apply_async and Pool.map . I am mainly using Pool.map ; what are the advantages of others?
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