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What's up with Java's “%n” in printf?
I'm reading Effective Java and it uses %n for the newline character everywhere. I have used \n rather successfully for newline in Java programs.
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Using JQuery to check if no radio button in a group has been checked
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@ScottE - excellent point - I'll remove this answer if Roland unaccepts it.
– Dominic Rodger
Jan 15 '10 at 14:48
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get dictionary value by key
...on, which I was not aware of. When I've found it out, I've pasted it here. And it seems that a lot of others didn't know about that also. Otherwise, they could also paste this answer and add that throws exception if key doesn't exist. Anyway, thanks for warning.
– FrenkyB
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emacs zoom in/zoom out
Is there a way to zoom in and out (dynamically change the font size, quite smoothly) on emacs?
3 Answers
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MySQL: how to get the difference between two timestamps in seconds
...ence between two timestamps in seconds, or would I need to do that in PHP? And if so, how would I go about doing that?
4 An...
Python: try statement in a single line
... in Python, like you would in some other dynamic languages. The safer way (and the prevailing style) is to set all variables to something. If they might not get set, set them to None first (or 0 or '' or something if it is more applicable.)
If you do assign all the names you are interested in fir...
Programmatically change UITextField Keyboard type
...CII characters, non-ASCII keyboards remain active
UIKeyboardTypeNumbersAndPunctuation, // Numbers and assorted punctuation.
UIKeyboardTypeURL, // A type optimized for URL entry (shows . / .com prominently).
UIKeyboardTypeNumberPad, // A number pad (0-9). ...
Detect if stdin is a terminal or pipe?
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On POSIX there is no io.h and for isatty() you need to include unistd.h.
– maxschlepzig
Sep 29 '11 at 13:22
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How to use ng-repeat for dictionaries in AngularJs?
...wered Aug 16 '12 at 11:37
Artem AndreevArtem Andreev
19.7k55 gold badges4141 silver badges4141 bronze badges
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Is it possible to Pivot data using LINQ?
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GroupBy in Linq does not work the same as SQL. In SQL, you get the key and aggregates (row/column shape). In Linq, you get the key and any elements as children of the key (hierarchical shape). To pivot, you must project the hierarchy back into a row/column form of your choosing.
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