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How can I check for NaN values?
float('nan') results in Nan (not a number). But how do I check for it? Should be very easy, but I cannot find it.
17 Answe...
Environment variables in Mac OS X
...: The link below does not have a complete answer . Having to set the path or variable in two places (one for GUI and one for shell) is lame.
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How to create a file with a given size in Linux?
For testing purposes I have to generate a file of a certain size (to test an upload limit).
13 Answers
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IE8 and JQuery's trim()
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Try this instead:
if($.trim($('#group_field').val()) != ''){
More Info:
http://api.jquery.com/jQuery.trim/
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Multiline strings in JSON
I'm writing some data files in JSON format and would like to have some really long string values split over multiple lines. Using python's JSON module I get a whole lot of errors, whether I use \ or \n as an escape.
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Center a DIV horizontally and vertically [duplicate]
Is there a way to CENTER A DIV vertically and horizontally but, and that is important, that the content will not be cut when the window is smaller than the content The div must have a background color and a width and hight.
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How can I convert immutable.Map to mutable.Map in Scala?
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The cleanest way would be to use the mutable.Map varargs factory. Unlike the ++ approach, this uses the CanBuildFrom mechanism, and so has the potential to be more efficient if library code was written to take advantage of this:
val m = collection.immutable.Map(1->"one",2->"Two...
Is there a goto statement in Java?
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The Java keyword list specifies the goto keyword, but it is marked as "not used".
It was in the original JVM (see answer by @VitaliiFedorenko), but then removed. It was probably kept as a reserved keyword in case it were to be added to a...
Redirect to external URI from ASP.NET MVC controller
...ing to redirect to external url from an action method but can't get it to work. Can anybody shed some light on my error?
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Disable cache for some images
... and simple solution to this problem that feels like a hack but is fairly portable is to add a randomly generated query string to each request for the dynamic image.
So, for example -
<img src="image.png" />
Would become
<img src="image.png?dummy=8484744" />
Or
<img src="image...