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Postgresql GROUP_CONCAT equivalent?
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239
This is probably a good starting point (version 8.4+ only):
SELECT id_field, array_agg(value_...
What is a Question Mark “?” and Colon “:” Operator Used for? [duplicate]
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294
This is the ternary conditional operator, which can be used anywhere, not just the print state...
What is the ellipsis (…) for in this method signature?
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213
Those are Java varargs. They let you pass any number of objects of a specific type (in this ca...
How to get error message when ifstream open fails
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72
Every system call that fails update the errno value.
Thus, you can have more information about ...
Does MySQL included with MAMP not include a config file?
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edited Oct 19 '16 at 16:28
Darryl Hein
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an...
GNU Makefile rule generating a few targets from a single source file
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12
I would solve it as follows :
file-a.out: input.in
foo-bin input.in file-a.out file-b.out ...
Python function overloading
...at does exactly that.
Solution
Here is how we might use multipledispatch2 package to implement your methods:
>>> from multipledispatch import dispatch
>>> from collections import namedtuple
>>> from types import * # we can test for lambda type, e.g.:
>>> ty...
How to test if string exists in file with Bash?
...s is 0 if selected lines are found and 1 otherwise. But the exit status is 2 if an error occurred, unless the -q or --quiet or --silent option is used and a selected line is found. Note, however, that POSIX only mandates, for programs such as grep, cmp, and diff, that the exit status in case of erro...
Accessing attributes from an AngularJS directive
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