Automated analysis is the main advantage to working with a modern statically typed compiled language like C++. Code analysis tools can inform us when we have implemented an operator overload with a non-canonical form, when we should have made a method const, or when the scope of a variable can be reduced.
Magic words:
psql -U postgres
Some interesting flags (to see all, use -h
or --help
depending on your psql version):
-E
: will describe the underlaying queries of the\
commands (cool for learning!)-l
: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)
<?php | |
/** | |
* | |
* | |
* @author Carsten Brandt <mail@cebe.cc> | |
*/ | |
namespace api\components; | |
use common\models\ApiSystem; |
Below are many examples of function hoisting behavior in JavaScript. Ones marked as works
successfuly print 'hi!' without errors.
To play around with these examples (recommended) clone them with git and execute them with e.g. node a.js
(I may be using incorrect terms below, please forgive me)
# Hello, and welcome to makefile basics. | |
# | |
# You will learn why `make` is so great, and why, despite its "weird" syntax, | |
# it is actually a highly expressive, efficient, and powerful way to build | |
# programs. | |
# | |
# Once you're done here, go to | |
# http://www.gnu.org/software/make/manual/make.html | |
# to learn SOOOO much more. |
# fix MAMP common issue, myslq wont start but apache is start | |
killall -9 mysqld | |
# check bash type | |
/usr/bin/printenv | |
# node and npm path, write on .bash_profile | |
echo 'export PATH=$PATH:/usr/local/bin' >> $HOME/.bash_profile | |
# uninstall npm package |
Use these rapid keyboard shortcuts to control the GitHub Atom text editor on macOS.
- ⌘ : Command key
- ⌃ : Control key
- ⌫ : Delete key
- ← : Left arrow key
- → : Right arrow key
- ↑ : Up arrow key
Note for newcomers: | |
In the shortcuts below, "C" stands for CTRL and "A" stands for "ALT". This is a convention | |
used in the Midnight Commander documentation and was kept here. | |
You can also use "ESC" instead of "ALT", which is useful on Macbooks. | |
Main View | |
--------------------------------------------------------------- | |
- File/directory operations |