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What does the restrict keyword mean in C++?
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In his paper, Memory Optimization, Christer Ericson says that while restrict is not part of the...
Elements order in a “for (… in …)” loop
... left undefined by the ECMAScript specification.
In ECMA-262, section 12.6.4:
The mechanics of enumerating the properties ... is implementation dependent.
However, specification is quite different from implementation. All modern implementations
of ECMAScript iterate through object properties in th...
Why are Python lambdas useful? [closed]
...ions to do stuff. Example:
mult3 = filter(lambda x: x % 3 == 0, [1, 2, 3, 4, 5, 6, 7, 8, 9])
sets mult3 to [3, 6, 9], those elements of the original list that are multiples of 3. This is shorter (and, one could argue, clearer) than
def filterfunc(x):
return x % 3 == 0
mult3 = filter(filterfu...
What's the common practice for enums in Python? [duplicate]
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4 Answers
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Why is a boolean 1 byte and not 1 bit of size?
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214
Because the CPU can't address anything smaller than a byte.
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How to randomly select an item from a list?
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14 Answers
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What's the -practical- difference between a Bare and non-Bare repository?
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edited Jan 24 '19 at 12:53
Enrico
6,07522 gold badges2020 silver badges4747 bronze badges
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What's better to use in PHP, $array[] = $value or array_push($array, $value)?
... almost 50% faster than the second one.
Some benchmark results:
Run 1
0.0054171085357666 // array_push
0.0028800964355469 // array[]
Run 2
0.0054559707641602 // array_push
0.002892017364502 // array[]
Run 3
0.0055501461029053 // array_push
0.0028610229492188 // array[]
This shouldn't be surprisin...
How to convert floats to human-readable fractions?
Let's say we have 0.33 , we need to output 1/3 .
If we have 0.4 , we need to output 2/5 .
26 Answers
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