JavaScript Fundamentals

Part 1: Variables

var greeting = 'Hello';
console.log(greeting); // prints: Hello

if (true) {
  var greeting = 'Hi';

polotek / design_docke_template.md

Created April 3, 2019 03:06

Design Doc Template

List stakeholders for project/feature.

Role	Person
Dev Owner
Other Dev 1 (Engine)

polotek / gist:7d0a9238d2f913fc7c5dd9bf51db2a62

Created January 25, 2018 22:04 — forked from mikeal/gist:2504336

Date parsing JSON

	JSON._dateReviver = function (k,v) {
	if (v.length !== 24 \|\| typeof v !== 'string') return v
	try {return new Date(v)}
	catch(e) {return v}
	}

	JSON.parseWithDates = function (obj) {
	return JSON.parse(obj, JSON._dateReviver);
	}

polotek / db-launch.sh

Last active April 20, 2016 05:47 — forked from fancyremarker/db-launch.sh

Example: db-launch script to launch the Aptible postgresql database image

	# A script for creating aptible postgres databases in containers
	container=$(head -c 32 /dev/urandom \| md5);
	username=${USERNAME:-aptible};
	passphrase=${PASSPHRASE:-password};
	dbname=${DATABASE:-db}
	cname=${CNAME}
	extport=${EXTPORT:-5432}
	image="${@: -1}";

	# Create a data volume

polotek / read_activity.js

Created October 24, 2012 20:48 — forked from igrigorik/read_activity.rb

	var request = require('request')
	, gunzip = require('zlib').createGunzip()
	, json = new (require('jstream'))();

	request('http://data.githubarchive.org/2012-03-11-12.json.gz')
	.pipe(gunzip)
	.pipe(json)
	.on('data', function(obj) {
	console.log(obj);
	});

polotek / device.js

Created May 11, 2012 05:27 — forked from rwaldron/device.js

Fat Arrows and Classes-as-Prototype-sugar make a beautiful future for JavaScript

	var stream = require("fake-stream-lib"),
	Emitter = require("events").EventEmitter,
	util = require("util");


	// Today...

	function Device( opts ) {

	this.value = null;

polotek / events.coffee

Created May 8, 2012 19:54 — forked from ryanflorence/events.coffee

	@events =

	events: {}

	on: (topic, handler, context = this) ->
	(@events[topic] or= []).push {handler, context}

	trigger: (topic, args...) ->
	return unless @events[topic]?
	handler.apply(context, args) for {handler, context} in @events[topic]

polotek / benchCallbacks.js

Created April 12, 2012 00:24 — forked from bjouhier/benchCallbacks.js

streamline vs. callbacks bench

polotek / route.js

Created December 6, 2011 18:50 — forked from creationix/route.js

Sanity check for async template idea

	Creationix.route("GET", "/", function (req, res, params, next) {
	render("frontindex", {
	title: query("index", "title"),
	links: query("index", "links"),
	articles: loadArticles
	}, function (err, html) {
	if (err) return next(err);
	res.writeHead(200, {
	"Content-Length": Buffer.byteLength(html),
	"Content-Type": "text/html; charset=utf-8"

polotek / route.js

Created December 5, 2011 19:19 — forked from creationix/route.js

Sanity check for async template idea

	Creationix.route("GET", "/", function (req, res, params, next) {
	loadIndex(function (err, home) {
	home.render("frontindex",
	links: query("index", "links"),
	articles: loadArticles()
	}, function (err, html) {
	if (err) return next(err);
	res.writeHead(200, {
	"Content-Length": Buffer.byteLength(html),
	"Content-Type": "text/html; charset=utf-8"