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What are “connecting characters” in Java identifiers?
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edited Aug 19 '17 at 0:40
TWiStErRob
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Why historically do people use 255 not 256 for database field magnitudes?
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answered Feb 26 '10 at 9:44
Greg HewgillGreg Hewgill
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How to find the size of an array in postgresql
...at the array is 1-dimensional (which is likely) and are running PostgreSQL 9.4 or higher, you can use cardinality:
SELECT cardinality(id) FROM example;
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Adding days to a date in Python
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594
The previous answers are correct but it's generally a better practice to do:
import datetime
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Uninstall old versions of Ruby gems
...oose which ones you want to remove
gem uninstall rjb
# remove version 1.1.9 only
gem uninstall rjb --version 1.1.9
# remove all versions less than 1.3.4
gem uninstall rjb --version '<1.3.4'
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Show a number to two decimal places
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answered Dec 19 '10 at 15:14
CodemwnciCodemwnci
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Using success/error/finally/catch with Promises in AngularJS
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edited May 9 '14 at 11:36
answered May 9 '14 at 8:32
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Regex for password must contain at least eight characters, at least one number and both lower and up
...gt;;: ()[]{}
– victor
Jun 24 at 11:59
what about Minimum eight characters, at least FOUR letter, one number and one sp...
Using custom std::set comparator
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edited Jun 26 '17 at 15:29
YLJ
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answered Apr 12 ...
Is gcc 4.8 or earlier buggy about regular expressions?
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<regex> was implemented and released in GCC 4.9.0.
In your (older) version of GCC, it is not implemented.
That prototype <regex> code was added when all of GCC's C++0x support was highly experimental, tracking early C++0x drafts and being made available for peopl...