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How to determine height of UICollectionView with FlowLayout
...on: I was completely searching in the wrong place, digging through all the documentation I could find on UICollectionView.
The simple and easy solution lies in the underlying layout: Just call collectionViewContentSize on your myCollectionView.collectionViewLayout property and you get the height an...
Keyboard shortcuts with jQuery
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This answer does give useful links. Could you also answer the original question? E.g. "how can I wire an event to fire if someone presses the letter g"? The jquery.hotkeys module has some documentation, which I'm sure is great if you ...
Check if checkbox is checked with jQuery
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IDs must be unique in your document, meaning that you shouldn't do this:
<input type="checkbox" name="chk[]" id="chk[]" value="Apples" />
<input type="checkbox" name="chk[]" id="chk[]" value="Bananas" />
Instead, drop the ID, and then se...
How to print a percentage value in python?
...nt precision type:
>>> print "{0:.0%}".format(1./3)
33%
If you don't want integer division, you can import Python3's division from __future__:
>>> from __future__ import division
>>> 1 / 3
0.3333333333333333
# The above 33% example would could now be written without t...
Error 330 (net::ERR_CONTENT_DECODING_FAILED):
... anyone knows if this is the error you would get if the browser your using does not support gzip compression?
– Lightbulb1
Oct 31 '13 at 12:33
6
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How to make a Java class that implements one interface with two generic types?
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This doesn't work if you don't have control over the interface (e.g. cxf/rs ExceptionMapper) ...
– vikingsteve
Nov 12 '13 at 9:27
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Does Python optimize tail recursion?
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No, and it never will since Guido van Rossum prefers to be able to have proper tracebacks:
Tail Recursion Elimination (2009-04-22)
Final Words on Tail Calls (2009-04-27)
You can manually eliminate the recursion with a transformation like this:
>>...
iPhone system font
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If you're doing programatic customisation, don't hard code the system font. Use UIFont systemFontOfSize:, UIFont boldSystemFontOfSize: and UIFont italicSystemFontOfSize (Apple documentation).
This has become especially relevant since ...
Explain “claims-based authentication” to a 5-year-old
...r at the bar. In theory the bartender should ask you for proof of age. How do you prove it? Well, one option is to have the bartender cut you in half and count the number of rings, but there could be some problems with that. The other option is for you to write down your birthday on a piece of paper...
Why should I learn Lisp? [closed]
...d learn Lisp and there are plenty of good resources out there to help me do it.
29 Answers
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