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Which is the preferred way to concatenate a string in Python?
...he most common. Here are timings with the timeit module:
a = a + b:
0.11338996887207031
a += b:
0.11040496826171875
However, those who recommend having lists and appending to them and then joining those lists, do so because appending a string to a list is presumably very fast compared to extendin...
map function for objects (instead of arrays)
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38 Answers
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Active
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Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
...2nd-last line.
Here are some results (n => number of A's):
7 => 9
8 => 12
9 => 16
10 => 20
100 => 1391569403904
1,000 => 3268160001953743683783272702066311903448533894049486008426303248121757146615064636953144900245
174442911064952028008546304
50,000 => a very large number...
How to compare variables to undefined, if I don’t know whether they exist? [duplicate]
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edited Apr 23 '13 at 11:48
answered May 6 '10 at 7:00
Makr...
Using vagrant to run virtual machines with desktop environment
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Jason
1,66822 gold badges1515 silver badges2828 bronze badges
answered Nov 16 '13 at 22:22
AirAir
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Is there any performance reason to declare method parameters final in Java?
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answered Nov 5 '08 at 22:31
RobinRobin
22.8k44 gold badges4747 silver badges5757 bronze badges
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MSBUILD : error MSB1008: Only one project can be specified
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edited Dec 8 '17 at 13:39
Liam
21.3k1717 gold badges8989 silver badges146146 bronze badges
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Eclipse does not highlight matching variables
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edited Jul 9 '14 at 8:47
answered Mar 29 '12 at 6:28
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How to add a margin to a table row [duplicate]
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18 Answers
18
Active
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Server is already running in Rails
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198
Remove the file: C:/Sites/folder/Pids/Server.pids
Explanation
In UNIX land at least we usually ...