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In pure functional languages, is there an algorithm to get the inverse function?
In pure functional languages like Haskell, is there an algorithm to get the inverse of a function, (edit) when it is bijective? And is there a specific way to program your function so it is?
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How do I adjust the anchor point of a CALayer, when Auto Layout is being used?
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[EDIT: Warning: The entire ensuing discussion will be possibly outmoded or at least heavily mitigated by iOS 8, which may no longer make the mistake of triggering layout at the time that a view transform is applied.]
Autolayout...
How to export a Vagrant virtual machine to transfer it
I have a vagrant box up and running (configured with a LAMP stack). I need to transfer it to another PC. How can I export it?
I guess that I can get a file (or files) that can be copied to another PC, so there I can run some command to import the vagrant box.
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Difference between DateTime and Time in Ruby
... concerned. Picking one for consistency is probably best, so try and mesh with what your libraries expect. For example, ActiveRecord prefers DateTime.
In versions prior to Ruby 1.9 and on many systems Time is represented as a 32-bit signed value describing the number of seconds since January 1, 197...
Fastest way to determine if an integer's square root is an integer
...r the fastest way to determine if a long value is a perfect square (i.e. its square root is another integer):
35 Answers...
Is there a way of setting culture for a whole application? All current threads and new threads?
...trols what CurrentCulture returns if a thread has not set that property on itself.
This does not change the native thread locale and it is probably not a good idea to ship code that changes the culture this way. It may be useful for testing though.
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How to get the size of a JavaScript object?
...follow
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edited May 23 '17 at 12:18
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answered Aug 10 '12 at ...
Are nested try/except blocks in python a good programming practice?
I'm writing my own container, which needs to give access to a dictionary inside by attribute calls. The typical use of the container would be like this:
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is it possible to update UIButton title/text programmatically?
...change some settings. When the view is dismissed, I'd like to update the title/text of the UIButton to reflect the new state. I'm calling:
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How can I convert my Java program to an .exe file? [closed]
...e a Java source file (*.java) or a class file (*.class), how can I convert it to a .exe file?
14 Answers
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