Parker Jones parallaxisjones

Git Subtree Basics

If you hate git submodule, then you may want to give git subtree a try.

Background

When you want to use a subtree, you add the subtree to an existing repository where the subtree is a reference to another repository url and branch/tag. This add command adds all the code and files into the main repository locally; it's not just a reference to a remote repo.

When you stage and commit files for the main repo, it will add all of the remote files in the same operation. The subtree checkout will pull all the files in one pass, so there is no need to try and connect to another repo to get the portion of subtree files, because they were already included in the main repo.

Adding a subtree

Let's say you already have a git repository with at least one commit. You can add another repository into this respository like this:

const {PassThrough} = require('stream')
const fs = require('fs')

const d = new PassThrough()  

fs.createReadStream('tt2.js').pipe(d)  // can be piped from reaable stream

d.pipe(process.stdout)                 // can pipe to writable stream 
d.on('data', console.log) // also like readable

JavaScript Classes - ES5 vs ES6

An example that shows the difference between creating a JavaScript class and subclass in ES5 and ES6.

Reference

Keybase proof

I hereby claim:

I am parallaxisjones on github.
I am parallaxisjones (https://keybase.io/parallaxisjones) on keybase.
I have a public key ASCuqWp2LShe3x9SUrSY-mO_BJ4mXHKUsTBdfD2eyLfYjAo

To claim this, I am signing this object:

	#! /usr/bin/env bash

	function zero_pad () {
	n=$1
	file=$2
	padding=`seq 1 $n \| sed 's/.*/0/' \| tr -d '\n'`
	zeroPadded="$padding$file"
	if test -f "$zeroPadded"; then
	echo "$zeroPadded exist"
	else

	<?php

	$html = <<<HTML
	<html>
	<head>
	<script src="http://example.com"></script>
	</head>
	<body>
	<div>
	<script>

	// source: https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent
	;(function() {
	if (typeof window.CustomEvent === "function") return false

	function CustomEvent(event, params) {
	params = params \|\| { bubbles: false, cancelable: false, detail: undefined }
	var evt = document.createEvent("CustomEvent")
	evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail)
	return evt
	}

	{
	"env": {
	"browser": true,
	"node": true,
	"es6": true
	},

	"plugins": ["react"],

	"ecmaFeatures": {

	/*****************
	* cellBlockA.js *
	*****************
	*
	* Good morning, Dr. Eval.
	*
	* It wasn't easy, but I've managed to get your computer down
	* to you. This system might be unfamiliar, but the underlying
	* code is still JavaScript. Just like we predicted.
	*

	document.addEventListener("DOMContentLoaded", function(){
	// Handler when the DOM is fully loaded
	});