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Sorting data based on second column of a file
...ile
-n, --numeric-sort compare according to string numerical value
For example:
$ cat ages.txt
Bob 12
Jane 48
Mark 3
Tashi 54
$ sort -k2 -n ages.txt
Mark 3
Bob 12
Jane 48
Tashi 54
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What is the purpose of using -pedantic in GCC/G++ compiler?
...ble. However, in some
cases, the C and C++ standards specify that certain extensions are forbidden. Conforming compilers
such as gcc or g++ must issue a diagnostic when these extensions are encountered. For example,
the gcc compiler’s -pedantic option causes gcc to issue warnings in such cases. Us...
How to combine two or more querysets in a Django view?
... groupby function: from itertools import groupby unique_results = [rows.next() for (key, rows) in groupby(result_list, key=lambda obj: obj.id)]
– Josh Russo
Sep 18 '11 at 22:21
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Plurality in user messages
...languages that have more than two degrees of plurality. (Take Russian for example. three different ways of saying depending on if its 1, <5, or >= 5 and even that depends on what exactly you are talking about). Basically I'm saying you need a stronger conditional statement and not just a terna...
Type hinting a collection of a specified type
...ble to use Python 3 type annotations to specify types within collections (ex: a list of strings).
The use of formatted docstrings such as reStructuredText or Sphinx are viable alternatives and supported by various IDEs.
It also appears that Guido is mulling over the idea of extending type annotati...
Responding with a JSON object in Node.js (converting object/array to JSON string)
...tion that will respond to me a JSON string. I currently have this from an example
6 Answers
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Pass Nothing from Javascript to VBScript in IE9
...the function is checked for Nothing in If statement and then some actions executed.
Code that uses framework written in Javascript. So I need to pass Nothing to function to perform some actions. In IE8 and earlier versions worked next approach:
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Git command to show which specific files are ignored by .gitignore
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Notes:
xiaobai's answer is simpler (git1.7.6+): git status --ignored
(as detailed in "Is there a way to tell git-status to ignore the effects of .gitignore files?")
MattDiPasquale's answer (to be upvoted) git clean -ndX works on old...
How can I stop a Postgres script when it encounters an error?
Is there a way to specify that when executing a sql script it stops when encountering the first error on the script, it usually continues, regardless of previous errors.
...
What's the result of += in C and C++?
...res a value in the object designated by the left operand. An
assignment expression has the value of the left operand after the assignment, but is not an
lvalue.
In C++ 5.17.1:
The assignment operator (=) and the compound assignment operators all group right-to-left. All require a modifiab...