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What does @: (at symbol colon) mean in a Makefile?
...) then in addition to @guestolio's answer it could also be a leftover stub from development. It's like writing a function in Python that only contains pass. It can be useful for stubbing blocks of code for copy/paste but they generally shouldn't exist for long. When stubbing this way the file wou...
Git hook to send email notification on repo changes
...our gitHub account on github.com
2) In the main tab click on Settings
3) From the main navigation choose Service Hooks
4) From Available Hooks choose Email
5) Fill in your email address in field Address
6) Check the checkbox Send from Author
7) Check the checkbox Active
8) Click on Update Set...
Check if something is (not) in a list in Python
...your list, python will have scanned the list upto the end. This is evident from the timings below:
l = list(range(100001))
s = set(l)
%timeit 100000 in l
%timeit 100000 in s
2.58 ms ± 58.9 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
101 ns ± 9.53 ns per loop (mean ± std. dev. of...
All falsey values in JavaScript
...all non-empty strings, including strings that are just whitespace
Anything from typeof, which always returns a non-empty string, for example:
typeof null (returns a string 'object' due to a longstanding bug/quirk)
typeof undefined (returns a string 'undefined')
Any object (except that "wilful vi...
C++ Best way to get integer division and remainder
...
I think many poeple know from elementary school that when doing a division you get the remainder for free. The real question is: are our compilers smart enough to take advantage of this?
– user180326
Aug 15 '11 ...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...etecting rotation gestures. You can download the apk file of the demo app from here. The demo app simply illustrates how to use the RotationDetector component to rotate an ImageSprite on canvas. The Designer view and block view of this demo app are shown below.
Here’s how to implement the r...
Automapper: Update property values without creating a new object
...
Thanks, Jimmy...I purposely stayed away from AutoMapper because I was afraid of the learning curve impacting my schedule. I'm officially sorry I stayed away so long...it's much easier than I initially thought.
– Neil T.
Apr 8 ...
Set encoding and fileencoding to utf-8 in Vim
... both in your ~/.vimrc if you always want to work in utf-8.
More details
From the wiki of VIM about working with unicode
"encoding sets how vim shall represent characters internally. Utf-8 is necessary for most flavors of Unicode."
"fileencoding sets the encoding for a particular file (local to ...
How to iterate over a JavaScript object?
...Cerbrus The OP allready knows how to iterate an array in parts. Using keys from the code given should be enough.
– Yoshi
Jan 17 '13 at 12:47
2
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unix domain socket VS named pipes?
...i-directional but half-duplex. This means that communication may go either from end A to end B, or B to A, but never both at the same time.
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