dhh

ruby '2.7.1'

gem 'rails', github: 'rails/rails'
gem 'tzinfo-data', '>= 1.2016.7'  # Don't rely on OSX/Linux timezone data

# Action Text
gem 'actiontext', github: 'basecamp/actiontext', ref: 'okra'
gem 'okra', github: 'basecamp/okra'

# Drivers

donvito

package main

import (
	"crypto/aes"
	"crypto/cipher"
	"crypto/rand"
	"encoding/hex"
	"fmt"
	"io"
)

elrayle

Byebug Cheatsheet

This cheatsheet includes most of the byebug commands organized by related commands (e.g. breakpoint related commands are together).

To see official help...

Command	Aliases	Example	Comments
help	h	h	list top level of all commands
help cmd	h cmd-alias	h n	list the details of a command (example shows requesting details for the next command) (this works for all commands)

akshaymohite

number = "314143525252"
sum = 0

number.reverse.split("").each_slice(2) do |x,y|
  sum += x.to_i + (2*y.to_i).divmod(10).sum
end

p sum%10 == 0 ? 'valid card number' : 'invalid card number'

schweigert

I am passionate about Ruby, but its execution time compared to other languages is extremely high, especially when we want to use more complex algorithms. In general, data structures in interpreted languages become incredibly slow compared to compiled languages. Some algorithms such as ´n-body´ and ´fannkuch-redux´ can be up to 30 times slower in Ruby than Go. This is one of the reasons I was interested in embedding Go code in a Ruby environment.

For those who do not know how shared libraries operate, they work in a similar way as DLLs in Windows. However, they have a native code with a direct interface to the C compiler.

Note Windows uses the DLL system, and in this case, this does not necessarily have to be in native code.

One example is DLLs written in C#, which runs on a virtual machine. Because I do not use windows, I ended up not testing if it is poss

joshbuchea

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

ldez

Gmail and GitHub

How to filter emails from GitHub in Gmail and flag them with labels.

The labels in this document are just examples.

Pull Request

Filter	Label

ColCh

Git pre-push hook

It will check if current branch is master, then ask a confirmation, in case of master branch

Articles with initial info: https://dev.ghost.org/prevent-master-push/, https://coderwall.com/p/jp7d5q/create-a-global-git-commit-hook

Demo

http://imgur.com/a/EXGAW

BretFisher

# problem: when presenting, I want to obscure
# my prompt to act like it's at root of file system 
# and be very basic with no git info, etc.

# solution: this theme lets you set a ENV to the path 
# of your presentation, which will help remove unneeded prompt
# features while in that path 

# oh-my-zsh theme for presenting demos
# based off the default rubbyrussell theme

jakub-g

#!/bin/bash

git-log-flat-message-author () {
  git log --format="%s %an" "$@"
}
git-log-flat-colored() {
  git --no-pager log --format="%C(yellow)%h%Creset %C(cyan)%cd%Creset %s %Cgreen%an%Creset" --date=short "$@"
}

REFERENCE_BRANCH="origin/releases/master"