davidcalhoun

function initSyntaxHighlighting() {
  // code
}

function loadScripts() {
    const scripts = [
        {
            src: 'https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/highlight.min.js',
            callback: initSyntaxHighlighting
        }

davidcalhoun

const elevToHypLength = (elev, canvasSize) => {
  return canvasSize - (canvasSize * elev) / 89.99999999;
}

const deg2rad = deg => (Math.PI * 2 * deg) / 360;

const toFixedFloat = (num = 0, digitsAfterDecimal = 0) => parseFloat(num.toFixed(digitsAfterDecimal))

const getXY = (azim, elev, canvasSize) => {
	const hyp = elevToHypLength(elev, canvasSize / 2);

davidcalhoun

/* Keeps track of x/y "progress" as the user mouses over an image */
imageElement.addEventListener('mousemove', e => {
  const target = e.target;
  const rect = target.getBoundingClientRect();
  const xProgress = Math.floor(((e.clientX - rect.x) / rect.width) * 100);
  const yProgress = Math.floor(((e.clientY - rect.y) / rect.height) * 100);
  /* 0,0 = mouse over top left of image, 100/100 = mouse over bottom right of image */
  console.log(xProgress, yProgress);
}, false)

davidcalhoun

// List of items to find occurrences in.
const list = ['Tom', 'Fluffy', 'Tom', 'Bella', 'Chloe', 'Tom', 'Chloe'];

// Creates a Map (hash) of occurrence numbers.
const counts = list.reduce((accumulator, val) => {
    // Initialize entry if needed.
    if (!accumulator.has(val)) accumulator.set(val, 0);
    
    // Increment value.
    accumulator.set(val, accumulator.get(val) + 1);

davidcalhoun

From Learncode YouTube: Part 1, Part 2

Transpile to ES5

• babeljs.io - most mainstream
• Traceur - competitor

Destructuring

Destructuring: Objects

var foo = {

davidcalhoun

function pt(lineLimit, lines) {
  // Seed the first value.
  if(!lines || lines.length === 0) return pt(lineLimit, [[1]]);

  var newLine = [];
  var lastLine = lines[lines.length - 1];

  // Fill out inner values
  for(var i=1, len=lastLine.length; i<len; i++) {
    newLine.push(lastLine[i - 1] + lastLine[i]);

davidcalhoun

//  one: passes up the error from two()
function one(cb){
	two(function(err, data){
		if(err) return cb('one ' + err);
		return cb(null, data);
	});
}

//  two: passes up the error from three()
function two(cb){

davidcalhoun

  'A Guide to the Why and How of Full-Stack JavaScript: http://t.co/GXiQtM4GNY',
  'RT @ghostalk_: We were joined by @izs for episode 19 of Ghostalk and talked about the origin of #npm #npmjs http://t.co/XPvhQs1k1F',
  'building a better, faster and more secure web... HTTPS Everywhere: http://t.co/Xn51hBWbqe - our Google I/O talk on the why and the how!',
  'Progressively Enhanced Single-Page Navigation http://t.co/kABarqGh8Q +@jmmcduffie',
  'DevTools Digest for Chrome 35: CSS quick-search, editor updates, network request filters, shadow DOM editability:   http://t.co/JfbdtMypCK',
  '@paul_irish Hi! You shared my article on min-content; I thought you might find my piece on content-width appealing: http://t.co/3cHQoYNaPp',
  'Chrome is committed to the mobile web. Here\'s what Chrome is doing to make the mobile web more awesome: http://t.co/GEMtlQJark',,
  'RT @Paul_Kinlan: A great talk by @jennylg: Design principles for a better mobile web - http://t.co/81Ly6tcOyH',
  'ngActivityIndicator.js: Preloaders for

davidcalhoun

[ 'RT @businessinsider: Apple may launch two new MacBook Air models tomorrow http://t.co/h6dyw0w4ZT',
  'RT @willienelson: Willie getting his black belt http://t.co/hVkdRytonE',
  'RT @hnycombinator Lessons learned from a cancelled project at GitHub (cmts http://t.co/GkeA8kX0J1 ) http://t.co/ur6MzGqfSq',
  'RT @engadget: Worth repeating: If you\'re using Windows XP and Internet Explorer, you\'re at risk: http://t.co/60YJb5smFL',
  'RT @conflitti: Just ran into @zeldman after day 1 of #aeabos Loved every minute of it. Thank you! That pic is for you @alisonpopp http://t.…',
  'RT @drunk_casey: @marcoarment @siracusa Or this one? http://t.co/Q2KxIEdxsQ',
  'RT @drunk_casey: @marcoarment @siracusa How about this one? http://t.co/3d1LB1UHXA',
  'RT @irwindigital: @marcoarment John’s “relatively speaking” approval T-shirt. cc: @siracusa http://t.co/esTSCPzw9U',
  'RT @sippndipp: @dalmaer Hell yeah! @9elements has mullets deep in their DNA http://t.co/FSlwwUKS1V',
  'Advanced bionic limbs could redefine disabilities

davidcalhoun

[ 'GIF of epic http://t.co/x4nh6yKdSd',
  'RT @AppleVis: New Guide: Understanding and Using VoiceOver\'s Commanders - http://t.co/yei98LzzKv',
  'An Introduction to the MEAN Stack: http://t.co/EWkNytsO5w',
  '320° Licht: A Repurposed 112-Meter High Gas Tank Converted into a Cathedral of Light http://t.co/17nYDz6dV5',
  'Messages.app, you had one job: display conversations in chronological order. http://t.co/lFObSsT0oj',
  'Dollyzoom.js - http://t.co/VD8nvzPoNP - for the filmmaker in you.',
  'Minicron is a system to manage and monitor (distributed) cron jobs: http://t.co/Os5aTlxBY4 - nice project / handy tool!',
  'RT @simevidas: With ES6 Set/Map in IE11, Safari remains the only browser that doesn\'t support them.\n\nCode demo: http://t.co/lgFEh90pXc',
  'RT @razvancaliman: CSS Shapes Editor in Brackets - http://t.co/DF2j2O4RgG A lot of time and work went into building this. I hope you find i…',
  'RT @letoams: first TLS 1.3 draft RT @botstandar: [RFC-DRAFT] The Transport Layer Security (TLS) Protocol Version