You need to install eslint and some other config libs.
yarn add eslint prettier eslint-config-prettier eslint-plugin-prettier -D
yarn eslint --init
.eslintrc.js
I tested the setup on Debian Stretch (naive installation) and Jessie (LinuxGSM installation). The setup should work on Debian 8 (Jessie), Debian 9 (Stretch) and Ubuntu (16.04). However, If you're running on Windows or other non-debian based Linux OS (e.g. CentOS, openSUSE), this guide doesn't apply to you.
I'm hosting FFA warm-up and HvH(soon) servers in San Francisco, welcome to join by:
IPv4: 159.89.154.137
Ipv6: 2604:a880:2:d0::20ad:2001
Git for Windows comes bundled with the "Git Bash" terminal which is incredibly handy for unix-like commands on a windows machine. It is missing a few standard linux utilities, but it is easy to add ones that have a windows binary available.
The basic idea is that C:\Program Files\Git\mingw64\
is your /
directory according to Git Bash (note: depending on how you installed it, the directory might be different. from the start menu, right click on the Git Bash icon and open file location. It might be something like C:\Users\name\AppData\Local\Programs\Git
, the mingw64
in this directory is your root. Find it by using pwd -W
).
If you go to that directory, you will find the typical linux root folder structure (bin
, etc
, lib
and so on).
If you are missing a utility, such as wget, track down a binary for windows and copy the files to the corresponding directories. Sometimes the windows binary have funny prefixes, so
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)
class Node: | |
def __init__(self,initdata): | |
self.data = initdata | |
self.next = None | |
def getData(self): | |
return self.data | |
def getNext(self): | |
return self.next |
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)Sometimes you want to have a subdirectory on the master
branch be the root directory of a repository’s gh-pages
branch. This is useful for things like sites developed with Yeoman, or if you have a Jekyll site contained in the master
branch alongside the rest of your code.
For the sake of this example, let’s pretend the subfolder containing your site is named dist
.
Remove the dist
directory from the project’s .gitignore
file (it’s ignored by default by Yeoman).
Latency Comparison Numbers (~2012) | |
---------------------------------- | |
L1 cache reference 0.5 ns | |
Branch mispredict 5 ns | |
L2 cache reference 7 ns 14x L1 cache | |
Mutex lock/unlock 25 ns | |
Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
Compress 1K bytes with Zippy 3,000 ns 3 us | |
Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |