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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...
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 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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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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How to randomly select an item from a list?
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14 Answers
14
Active
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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...
Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=
...RE clause:
CREATE PROCEDURE updateProductUsers(
IN rUsername VARCHAR(24),
IN rProductID INT UNSIGNED,
IN rPerm VARCHAR(16))
BEGIN
UPDATE productUsers
INNER JOIN users
ON productUsers.userID = users.userID
SET productUsers.permission = rPerm
WHERE user...
What's the common practice for enums in Python? [duplicate]
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4 Answers
4
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Using GCC to produce readable assembly?
... push ebp
1: 89 e5 mov ebp,esp
3: 83 e4 f0 and esp,0xfffffff0
6: 83 ec 10 sub esp,0x10
puts("test");
9: c7 04 24 00 00 00 00 mov DWORD PTR [esp],0x0
10: e8 fc ff ff ff call 11 <main+0x11>...