Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.
$ python -m SimpleHTTPServer 8000
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 |
Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.
$ python -m SimpleHTTPServer 8000
package main | |
import ( | |
"net/http" | |
) | |
type SingleHost struct { | |
handler http.Handler | |
allowedHost string | |
} |
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)Teh Social Netswork!
CREATE TABLE users (
id SERIAL PRIMARY KEY,
name VARCHAR(10) NOT NULL
);
INSERT into users VALUES
# 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. |
The designer and programmer who main goal is to inspire other creators.
The early programmer struggles with the Javascript keyword this
. But understanding your this
context is easier than it seems.
This
is all about where a function is invoked.
Often, early programmers worry about where the function was declared. Perhaps the function was declared in a specific file or a particular object. Surely this changes it's this
!
Nope.
I am moving this gist to a github repo so more people can contribute to it. Also, it makes it easier for me to version control.
Please go to - https://github.com/praveenpuglia/shadow-dom-in-depth for latest version of this document. Also, if you find the document useful, please shower your love, go ⭐️ it. :)
Heads Up! It's all about the V1 Spec.
In a nutshell, Shadow DOM enables local scoping for HTML & CSS.
# GET VERSION | |
npm -v (or --version) | |
# GET HELP | |
npm help | |
npm | |
# CREATE PACKAGE.JSON | |
npm init | |
npm init -y (or --yes) |