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How do I sort a list of dictionaries by a value of the dictionary?
...reverse() statement. Otherwise you can define a comparison like cmp=lambda x,y: - cmp(x['name'],y['name']).
– Mario F
Oct 13 '09 at 7:14
3
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Get the position of a div/span tag
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This function will tell you the x,y position of the element relative to the page. Basically you have to loop up through all the element's parents and add their offsets together.
function getPos(el) {
// yay readability
for (var lx=0, ly=0;
...
How do I pass a unique_ptr argument to a constructor or a function?
...sociated meaning.
(A) By Value
Base(std::unique_ptr<Base> n)
: next(std::move(n)) {}
In order for the user to call this, they must do one of the following:
Base newBase(std::move(nextBase));
Base fromTemp(std::unique_ptr<Base>(new Base(...));
To take a unique pointer by value me...
How to bind function arguments without binding this?
...arg2 ... };
}(actualArg1Value, actualArg2Value);
Hope I got the syntax right there. What it does is create a function called withWrappedArguments() (to be pedantic it is an anonymous function assigned to the variable) that you can call any time any where and will always act with actualArg1Val...
How to use arguments from previous command?
... press the digit (this will count from the end of the list of arguments.
Example:
Enter the following command
$ echo a b c d e f g
a b c d e f g
Now at the next prompt, type echo (with a following space), then
Press Alt-Ctrl-y and you'll now see:
$ echo a
without pressing Enter yet, do the ...
How do I select a merge strategy for a git rebase?
git-rebase man page mentions -X<option> can be passed to git-merge . When/how exactly?
3 Answers
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How can I check if an ip is in a network in Python?
...ticle shows you can do it with socket and struct modules without too much extra effort. I added a little to the article as follows:
import socket,struct
def makeMask(n):
"return a mask of n bits as a long integer"
return (2L<<n-1) - 1
def dottedQuadToNum(ip):
"convert decimal d...
Visual Studio 2013 doesn't discover unit tests
...o the menu and choose Test -> Run -> Run all tests or by opening the test explorer window. By those to methods visual studio doesn’t discover any tests in the solution.
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Using ls to list directories and their total sizes
Is it possible to use ls in Unix to list the total size of a sub-directory and all its contents as opposed to the usual 4K that (I assume) is just the directory file itself?
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What is JSON and why would I use it?
...he MDN, some JavaScript is not JSON, and some JSON is not JavaScript.
An example of where this is used is web services responses. In the 'old' days, web services used XML as their primary data format for transmitting back data, but since JSON appeared (The JSON format is specified in RFC 4627 by ...