Skip to content

Instantly share code, notes, and snippets.

View ddeveloperr's full-sized avatar
👨‍💻
Doist

Kemal C. ddeveloperr

👨‍💻
Doist
View GitHub Profile
@thebucknerlife
thebucknerlife / authentication_with_bcrypt_in_rails_4.md
Last active March 12, 2025 18:03
Simple Authentication in Rail 4 Using Bcrypt

#Simple Authentication with Bcrypt

This tutorial is for adding authentication to a vanilla Ruby on Rails app using Bcrypt and has_secure_password.

The steps below are based on Ryan Bates's approach from Railscast #250 Authentication from Scratch (revised).

You can see the final source code here: repo. I began with a stock rails app using rails new gif_vault

##Steps

@insin
insin / contactform.js
Last active June 21, 2025 08:07
React contact form example
/** @jsx React.DOM */
var STATES = [
'AL', 'AK', 'AS', 'AZ', 'AR', 'CA', 'CO', 'CT', 'DE', 'DC', 'FL', 'GA', 'HI',
'ID', 'IL', 'IN', 'IA', 'KS', 'KY', 'LA', 'ME', 'MD', 'MA', 'MI', 'MN', 'MS',
'MO', 'MT', 'NE', 'NV', 'NH', 'NJ', 'NM', 'NY', 'NC', 'ND', 'OH', 'OK', 'OR',
'PA', 'RI', 'SC', 'SD', 'TN', 'TX', 'UT', 'VT', 'VA', 'WA', 'WV', 'WI', 'WY'
]
var Example = React.createClass({
@sidonath
sidonath / aging.md
Last active December 15, 2015 11:38
Resources relevant to the "Prepare your application for the old age" talk given at Sarajevo Ruby Meetup (21 March 2013)

Prepare your application for the old age

Since I didn't have any slides during the talk, here are some resources that cover similar topics and/or were mentioned during the talk itself.

Happy hacking!

Various articles related to the talk

The article that inspired the talk: The Startup Trap.

@hellerbarde
hellerbarde / latency.markdown
Created May 31, 2012 13:16 — forked from jboner/latency.txt
Latency numbers every programmer should know

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

@keeguon
keeguon / countries.json
Created April 5, 2012 11:11
A list of countries in JSON
[
{name: 'Afghanistan', code: 'AF'},
{name: 'Åland Islands', code: 'AX'},
{name: 'Albania', code: 'AL'},
{name: 'Algeria', code: 'DZ'},
{name: 'American Samoa', code: 'AS'},
{name: 'AndorrA', code: 'AD'},
{name: 'Angola', code: 'AO'},
{name: 'Anguilla', code: 'AI'},
{name: 'Antarctica', code: 'AQ'},