Dieu Nguyen dieunb

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = [email protected]:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

Cleanup docker images and containers after failed builds

Sometimes, there are some untagged images left behind after failed builds. In order to get rid of those, this script can be used.

#!/bin/bash
docker rm $(docker ps -aq)
docker rmi $(docker images | grep "^<none>" | awk '{print $3}')

true and false vs. "truthy" and "falsey" (or "falsy") in Ruby, Python, and JavaScript

Many programming languages, including Ruby, have native boolean (true and false) data types. In Ruby they're called true and false. In Python, for example, they're written as True and False. But oftentimes we want to use a non-boolean value (integers, strings, arrays, etc.) in a boolean context (if statement, &&, ||, etc.).

This outlines how this works in Ruby, with some basic examples from Python and JavaScript, too. The idea is much more general than any of these specific languages, though. It's really a question of how the people designing a programming language wants booleans and conditionals to work.

If you want to use or share this material, please see the license file, below.

	#!/bin/sh

	# Credits: http://stackoverflow.com/a/750191

	git filter-branch -f --env-filter "
	GIT_AUTHOR_NAME='Newname'
	GIT_AUTHOR_EMAIL='new@email'
	GIT_COMMITTER_NAME='Newname'
	GIT_COMMITTER_EMAIL='new@email'
	" HEAD

	require 'socket'

	# 1. Create

	# AF_INET means IPv4 (xxx.xxx.xxx.xxx)
	# SOCK_STREAM means communicating with a stream (TCP)
	#
	# Can be simplified to symbols :INET and :STREAM, respectively
	server = Socket.new(Socket::AF_INET, Socket::SOCK_STREAM)

	If you don't remember the password you set for root and need to reset it, follow these steps:

	Stop the mysqld server, this varies per install
	Run the server in safe mode with privilege bypass
	sudo mysqld_safe --skip-grant-tables;

	In a new window connect to the database, set a new password and flush the permissions & quit:
	mysql -u root

	For MySQL older than MySQL 5.7 use:

	{
	"school_center": "Awesome academy",
	"class_name": "Awesome Academy - PR1701",
	"students": [
	{
	"name": "Hoang Lao Ta",
	"age": "80",
	"sex": "male"
	},
	{

	FROM ruby:2.4-alpine

	ENV PATH /root/.yarn/bin:$PATH

	RUN apk update && apk upgrade && \
	apk add --no-cache bash git openssh build-base nodejs tzdata

	RUN apk update \
	&& apk add curl bash binutils tar gnupg \
	&& rm -rf /var/cache/apk/* \

	# Font-awesome
	vi node_modules/font-awesome/scss/_variables.scss

	# Replace
	$fa-font-path: "../fonts";
	# with this code
	$fa-font-path: "font-awesome/fonts";

	# Bootstrap
	vi node_modules/gentelella/vendors/bootstrap/dist/css/bootstrap.css

Dieu Nguyen dieunb

Cleanup docker images and containers after failed builds

true and false vs. "truthy" and "falsey" (or "falsy") in Ruby, Python, and JavaScript

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