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php is null or empty?
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353
What you're looking for is:
if($variable === NULL) {...}
Note the ===.
When use ==, as you ...
How to read a large file - line by line?
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answered Nov 4 '11 at 13:46
KatrielKatriel
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What is the difference between currying and partial application?
...)(lambda(accum,e){concat(e,accum)})(empty-list);
/* ... */
@list = [1, 2, 3, 4]
sum(list) //returns 10
@f = fold(lambda(accum,e){e+accum}) //f = lambda(accumulator,list) {/*...*/}
f(0,list) //returns 10
@g = f(0) //same as sum
g(list) //returns 10
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Truncating floats in Python
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return '.'.join([i, (d+'0'*n)[:n]])
This is valid in Python 2.7 and 3.1+. For older versions, it's not possible to get the same "intelligent rounding" effect (at least, not without a lot of complicated code), but rounding to 12 decimal places before truncation will work much of the time:
def...
Why aren't ◎ܫ◎ and ☺ valid JavaScript variable names?
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edited Apr 12 '13 at 14:59
cHao
76.3k1818 gold badges132132 silver badges164164 bronze badges
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What is the difference between shallow copy, deepcopy and normal assignment operation?
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367
Normal assignment operations will simply point the new variable towards the existing object. T...
Confused by python file mode “w+”
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138
Let's say you're opening the file with a with statement like you should be. Then you'd do somet...
What optimizations can GHC be expected to perform reliably?
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3 Answers
3
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How to find encoding of a file via script on Linux?
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436
Sounds like you're looking for enca. It can guess and even convert between encodings. Just look...
What's the difference between a single precision and double precision floating point operation?
...e a 64-bit processor, however:
Many games took advantage of the chip's 32-bit processing mode as the greater data precision available with 64-bit data types is not typically required by 3D games, as well as the fact that processing 64-bit data uses twice as much RAM, cache, and bandwidth, thereb...