Jacques Crocker jacquescrocker

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

Effective Engineer - Notes

By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

What's an Effective Engineer?

require-from-twitter

Since Twitter doesn't have an edit button, it's a suitable host for JavaScript modules.

How to use

Source tweet: https://twitter.com/rauchg/status/712799807073419264

const leftPad = await requireFromTwitter('712799807073419264');

Hosting a competition on surge.sh

...by adding an EVENT.json file to the root of your project.

Hosting an event on surge is very simple. It's three easy steps.

Publish a project to Surge to your root domain (eg. surge ./myproject superevent.io)
Point superevent.io and *.superevent.io DNS records to surges servers.
Add EVENT.json file with the following properties...

Prebase

git-prebase improves on 'git rebase -i' by adding information per commit regarding which files it touched.

Each file gets an alpha-numeric identifier at a particular column, a list of which appears below the commit list. (The identifiers wrap around after the 62nd file)
Commits can be moved up and down safely (without conflicts) as long as their columns don't clash (they did not touch the same file).

Installation

Add the executable to your path and git will automatically expose it as

Moving to ES6 from CoffeeScript

I fell in love with CoffeeScript a couple of years ago. Javascript has always seemed something of an interesting curiosity to me and I was happy to see the meteoric rise of Node.js, but coming from a background of Python I really preferred a cleaner syntax.

In any fast moving community it is inevitable that things will change, and so today we see a big shift toward ES6, the new version of Javascript. It incorporates a handful of the nicer features from CoffeeScript and is usable today through tools like Babel. Here are some of my thoughts and issues on moving away from CoffeeScript in favor of ES6.

While reading I suggest keeping open a tab to Babel's learning ES6 page. The examples there are great.

Punctuation

Holy punctuation, Batman! Say goodbye to your whitespace and hello to parenthesis, curly braces, and semicolons again. Even with the advanced ES6 syntax you'll find yourself writing a lot more punctuatio

Ember Router Async Facelift

The Ember router is getting number of enhancements that will greatly enhance its power, reliability, predictability, and ability to handle asynchronous loading logic (so many abilities), particularly when used in conjunction with promises, though the API is friendly enough that a deep understanding of promises is not required for the simpler use cases.

Update 6/14/13

see https://gist.github.com/machty/5723945 for the latest API (unlikely to change from now on)
latest Ember build: https://machty.s3.amazonaws.com/ember/ember-async-routing-10.js

Router Facelift Examples

Guide to latest API enhancements router.js PR Ember PR

	import React from 'react';
	import PropTypes from 'prop-types';
	import classNames from 'classnames';

	const ANIMATION_DURATION = 1000;

	class BatchDropZone extends React.Component {

	static propTypes = {

	namespace :db do
	namespace :migrate do
	desc "Re-run a migration that's already been run"
	task :rerun => [:environment, :load_config] do
	class ActiveRecord::Migrator
	def rerun
	target = migrations.detect { \|m\| m.version == @target_version }
	raise UnknownMigrationVersionError.new(@target_version) if target.nil?
	target.migrate(:up)
	end