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Which websocket library to use with Node.js? [closed]
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How to get index in Handlebars each helper?
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534
In the newer versions of Handlebars index (or key in the case of object iteration) is provided ...
What is stack unwinding?
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153
Stack unwinding is usually talked about in connection with exception handling. Here's an example...
Is Tomcat running?
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edited Dec 31 '15 at 18:02
erip
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How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?
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1183
I think you're looking for dispatch_after(). It requires your block to accept no parameters, bu...
How to test if a double is an integer
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maxhudmaxhud
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How to upper case every first letter of word in a string? [duplicate]
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answered Jul 19 '09 at 13:11
akarnokdakarnokd
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Kill process by name?
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answered May 31 '10 at 0:50
Alex MartelliAlex Martelli
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Best way to parse command-line parameters? [closed]
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Roberto Bonvallet
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answered Jul 6 '10 at 6:29
pjotrppjotrp
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Efficient way to remove keys with empty strings from a dict
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dict((k, v) for k, v in metadata.iteritems() if v)
Python 2.7 - 3.X
{k: v for k, v in metadata.items() if v is not None}
Note that all of your keys have values. It's just that some of those values are the empty string. There's no such thing as a key in a dict without a value; if it d...