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Python - How to sort a list of lists by the fourth element in each list? [duplicate]
...tter(3) here (from the operator module). While some people find itemgetter and attrgetter less readable than lambdas, others use them extensively, so it's at least worth being able to read them and know what they do.
– abarnert
Jul 9 '13 at 18:20
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How do you tell if a string contains another string in POSIX sh?
... ]]
then
echo "String2 present"
else
echo "Else"
fi
As an added bonus (and/or a warning, if your strings have any funny characters in them), =~ accepts regexes as the right operand if you leave out the quotes.
share
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git difftool, open all diff files immediately, not in serial
...m a directory diff.
This feature works well with Meld 3.14.2 for example, and lets you browse all modified files:
git difftool --dir-diff --tool=meld HEAD~ HEAD
This is a handy Bash function:
git-diff-meld() (
git difftool --dir-diff --tool=meld "${1:-HEAD~}" "${2:-HEAD}"
)
The answer that ...
What does “coalgebra” mean in the context of programming?
I have heard the term "coalgebras" several times in functional programming and PLT circles, especially when the discussion is about objects, comonads, lenses, and such. Googling this term gives pages that give mathematical description of these structures which is pretty much incomprehensible to me. ...
How do you force Visual Studio to regenerate the .designer files for aspx/ascx files?
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If you open the .aspx file and switch between design view and html view and
back it will prompt VS to check the controls and add any that are missing to
the designer file.
In VS2013-15 there is a Convert to Web Application command under the Project ...
How to update only one field using Entity Framework?
...lude to use db.Entry(user).Property(x => x.Password).IsModified = true; and not db.Entry(user).Property("Password").IsModified = true;
– Johan
Aug 14 '13 at 19:43
5
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How many database indexes is too many?
...nds on the operations that occur on the table.
If there's lots of SELECTs and very few changes, index all you like.... these will (potentially) speed the SELECT statements up.
If the table is heavily hit by UPDATEs, INSERTs + DELETEs ... these will be very slow with lots of indexes since they all ...
css 'pointer-events' property alternative for IE
...nu when clicked on) while others should navigate (these dont have dropdown and navigate directly).However, both types have href defined to them
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Removing item from vector, while in C++11 range 'for' loop?
I have a vector of IInventory*, and I am looping through the list using C++11 range for, to do stuff with each one.
12 Answ...
Making a WinForms TextBox behave like your browser's address bar
... I've found a way to make it work. This solution is pretty straightforward and seems to work in all the scenarios (mousing down, selecting text, tabbing focus, etc.)
bool alreadyFocused;
...
textBox1.GotFocus += textBox1_GotFocus;
textBox1.MouseUp += textBox1_MouseUp;
textBox1.Leave += textBox1_L...