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Cartesian product of x and y array points into single array of 2D points
...example, unutbu reports seeing the following results for these tests using Ubuntu 14.04, Python 3.4.3, and numpy 1.14.0.dev0+b7050a9:
>>> %timeit cartesian_product_transpose(x500, y500)
1000 loops, best of 3: 682 µs per loop
>>> %timeit cartesian_product(x500, y500)
1000 loops, ...
How can I wait for set of asynchronous callback functions?
...ost recent browser (Edge 12, Firefox 40, Chrome 43, Safari 8, Opera 32 and Android browser 4.4.4 and iOS Safari 8.4, but not Internet Explorer, Opera Mini and older versions of Android).
If we want to perform 10 async actions and get notified when they've all finished, we can use the native Promise...
Rails server says port already used, how to kill that process?
...-i tcp:3000 -t
And then using that process id, simply kill process using ubuntu kill command.
kill -9 pid
Or just run below mentioned combine command. It will first fetch pid and then kill that process.
kill -9 $(lsof -i tcp:3000 -t)
...
How to check type of files without extensions in python?
...
Beware that the debian/ubuntu package called python-magic is different to the pip package of the same name. Both are import magic but have incompatible contents. See stackoverflow.com/a/16203777/3189 for more.
– Hamish Downe...
How do I use regex in a SQLite query?
...Maybe some sqlite distributions or GUI tools include it by default, but my Ubuntu install did not. The solution was
sudo apt-get install sqlite3-pcre
which implements Perl regular expressions in a loadable module in /usr/lib/sqlite3/pcre.so
To be able to use it, you have to load it each time you...
Maven plugins can not be found in IntelliJ
...ion, Deployment -> Build Tools -> Maven (IntelliJ Ultimate 2020.2 on Ubuntu)... and then I needed to invalidate caches and restart (File -> Invalid Caches / Restart). Problem solved, thank you!
– Lambart
Aug 20 at 21:25
...
C++: what regex library should I use? [closed]
... finite state machine diagram:
Update 1:
lvm's libc++ regex works on ubuntu 14.04: libc++-dev - LLVM C++ Standard library (development files). When compiling: clang++ -std=c++11 -lc++ -I/usr/include/c++/v1 ...
Update 2:
I'm currently enjoying boost spirit 3 - I like it more than regex, becau...
How can I know if a branch has been already merged into master?
...the installation of an application that is not part of the git client. On Ubuntu, apt-get install gitk.
– metame
Apr 27 '17 at 12:36
...
Converting Mercurial folder to a Git repository
...alFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux
Install Ubuntu 16.04 LTS from Microsoft Store
Open Bash and run
install mercurial
sudo -s
apt-get update
apt install mercurial
get fast-export v180317 (at the moment versions after 180317 does not work correctly)
cd /mnt/c/path...
NPM cannot install dependencies - Attempt to unlock something which hasn't been locked
...udo su -
sudo npm install forever -g
Then the package installed on Linux Ubuntu 14.04.
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