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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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What's the -practical- difference between a Bare and non-Bare repository?
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edited Jan 24 '19 at 12:53
Enrico
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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...
What is the 'pythonic' equivalent to the 'fold' function from functional programming?
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Fred FooFred Foo
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How to get JS variable to retain value after page refresh? [duplicate]
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4 Answers
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SparseArray vs HashMap
...ray {
int[] keys;
int[] values;
int size;
}
Class = 12 + 3 * 4 = 24 bytes
Array = 20 + 1000 * 4 = 4024 bytes
Total = 8,072 bytes
HashMap:
class HashMap<K, V> {
Entry<K, V>[] table;
Entry<K, V> forNull;
int size;
int modCount;
int threshold;
S...
Max parallel http connections in a browser?
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428
Max Number of default simultaneous persistent connections per server/proxy:
Firefox 2: 2
Fir...
What does the ^ operator do in Java?
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422
The ^ operator in Java
^ in Java is the exclusive-or ("xor") operator.
Let's take 5^6 as exa...
Determine whether an array contains a value [duplicate]
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edited Jan 5 '16 at 2:46
answered Jul 25 '09 at 8:22
ey...