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Checking for empty arrays: count vs empty
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Finding local maxima/minima with Numpy in a 1D numpy array
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SPAN vs DIV (inline-block)
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Danger14
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answered Oct 23 '09 at 2:11
cletuscletus
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Find MongoDB records where array field is not empty
...lution:
ME.find({ pictures: { $exists: true, $ne: [] } })
Since MongoDB 2.6 release, you can compare with the operator $gt but could lead to unexpected results (you can find a detailled explanation in this answer):
ME.find({ pictures: { $gt: [] } })
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Struct inheritance in C++
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Yes, struct is exactly like class except the default accessibility is public for struct (while...
Multiple commands in an alias for bash
...h }" ?
– emeraldjava
Jan 14 '10 at 12:12
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How do you pass the argument? Nesting variable 'msg' ...
How can I quantify difference between two images?
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Why is using 'eval' a bad practice?
...actice because eval and exec are frequently used in the wrong place.
EDIT 2:
It looks like some disagree that eval is 'very dangerous and insecure' in the OP case. That might be true for this specific case but not in general. The question was general and the reasons I listed are true for the gener...
What is the difference between Int and Integer?
...ers may
recognise the "bignum" type here.
"Int" is the more common 32 or 64 bit
integer. Implementations vary,
although it is guaranteed to be at
least 30 bits.
Source: The Haskell Wikibook. Also, you may find the Numbers section of A Gentle Introduction to Haskell useful.
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How to check for a valid Base64 encoded string
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William
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answered Jun 10 '11 at 16:35
Anirudh RamanathanAnirudh Ramanathan...