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Lucia Lupeipei

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@jeffkreeftmeijer
jeffkreeftmeijer / 1.png
Last active November 3, 2023 00:56
Ruby image diff
1.png
@jeffkreeftmeijer
jeffkreeftmeijer / 1.png
Created April 18, 2011 08:34
Image difference blend
1.png
@henrik
henrik / tmux_cheatsheet.markdown
Created March 3, 2012 19:47
tmux cheatsheet

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

@jboner
jboner / latency.txt
Last active July 20, 2024 23:12
Latency Numbers Every Programmer Should Know
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
@huangzhichong
huangzhichong / selenium-webdriver-cheatsheet.md
Created August 7, 2012 12:38
Selenium Webdriver CheatSheet

API workthough

  1. Open a browser

    # start an instance of firefox with selenium-webdriver
driver = Selenium::WebDriver.for :firefox
# :chrome -> chrome
# :ie     -> iexplore
  • Go to a specified URL
@umidjons
umidjons / index.html
Last active January 6, 2024 18:46
Upload File using jQuery.ajax() with progress support
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Upload File using jQuery.ajax() with progress support</title>
</head>
<body>
<input type="file" name="file" id="sel-file"/>
@jtadeulopes
jtadeulopes / server.md
Last active March 29, 2024 10:23
Server setup with ubuntu, nginx and puma for rails app.

Update and upgrade the system

sudo apt-get update && sudo apt-get upgrade && sudo apt-get dist-upgrade && sudo apt-get autoremove
sudo reboot

Configure timezone

@rxaviers
rxaviers / gist:7360908
Last active July 20, 2024 22:24
Complete list of github markdown emoji markup

People

:bowtie: :bowtie: 😄 :smile: 😆 :laughing:
😊 :blush: 😃 :smiley: ☺️ :relaxed:
😏 :smirk: 😍 :heart_eyes: 😘 :kissing_heart:
😚 :kissing_closed_eyes: 😳 :flushed: 😌 :relieved:
😆 :satisfied: 😁 :grin: 😉 :wink:
😜 :stuck_out_tongue_winking_eye: 😝 :stuck_out_tongue_closed_eyes: 😀 :grinning:
😗 :kissing: 😙 :kissing_smiling_eyes: 😛 :stuck_out_tongue:
@lttlrck
lttlrck / gist:9628955
Created March 18, 2014 20:34
rename git branch locally and remotely
git branch -m old_branch new_branch # Rename branch locally
git push origin :old_branch # Delete the old branch
git push --set-upstream origin new_branch # Push the new branch, set local branch to track the new remote
@thebucknerlife
thebucknerlife / authentication_with_bcrypt_in_rails_4.md
Last active July 10, 2024 00:17
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