How I stopped worrying and learned to love the <body/>

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var src='http://facebook.com/jamesgpearce';

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Sushi! window.addEventListener('load', function () { // and now I get on with my craft }, false);

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// I trust my styles // I trust my libraries // I trust my runtime // I trust my code

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Sushi!

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No content

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No content

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console.log(document.body.outerHTML);

div>

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// WYSITMINWYGITD

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var importantThing = document.body.appendChild( document.createElement('div') );

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// now we have to go back and get it var thing = document.getElementById('thing'); // oh, or maybe there were several of them var things = document.getElementsByClassName('things'); // oh, no! NodeList is not an array! for (var i=0, l=things.length; i < l; i++) { // do something to things.item(i); } // finally try to be awesome

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$('#warning').html('

You might be doing it wrong

');

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var video = addElement('video', {autoplay: false}), play = addElement('button', null, 'Play'); play.addEventListener('click', function () { video.play(); });

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// no post-load, post-render, DOM traversal // well-scoped variable references to DOM elements // easy iterative or recursive element creation // no markup verbosity on the wire // no need to overload attribute semantics // reduce class or ID collisions

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// avoid the impedance mismatch between markup and script

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Sushi! window.addEventListener('load', function () { // magic }, false);

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Sushi! window.addEventListener('load', function () { // magic }, false);

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Sushi! window.addEventListener('load', function () { // magic }, false);

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document.head.appendChild( document.createElement('title') ).innerText = 'Sushi';

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var style = document.head.appendChild( document.createElement('link') ); style.href = 'style.css'; style.rel = 'stylesheet'; // kicks off the request

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var library = document.head.appendChild( document.createElement('script') ); library.addEventListener('load', function () { // now we're in business }; library.src = 'library.js'; // kicks off the request

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switch (reaction) { case SEEMS_REASONABLE: // sure, why not? break; default: throw ('HOW ABOUT NO?'); }

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try { // provoke } catch (e) { }

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// there is no one way to do web

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declarative imperative thin client thick client web sites web apps large screen small screen sedentary mobile read-only read-write stateless stateful anonymous social

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// When did the web start to dream about being an app platform?

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Telephone:

Your number is $(tel)

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var superficialDebate() { if (arguments) { return NATIVE; } else { return WEB; } }

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// "the web will always win"

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Television won’t be able to hold on to any market it captures after the first six months. People will soon get tired of staring at a plywood box every night - Darryl Zanuck, 20th Century Fox, 1946

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// what can the web learn? // how can it stay relevant & competitive? // how can it keep the lights on?

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The web is wearing out - Matt DeBergalis, Meteor, 2012

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// server - cpu - - - - - - - - - - - client // mainframes // server - - - - - - - - - - - cpu - client // workstations // server - cpu - - - - - - - - - - - client // the web // ? cpu - client // mobile

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var xhr = new ActiveXObject('Microsoft.XMLHTTP');

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switch (tag.name) { case 'input' switch (tag.getAttribute('type')) { case 'date': // something interesting case 'color': // something interesting ... } ... }

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switch (tag.name) { case 'input' switch (tag.getAttribute('type')) { case 'date': // something interesting case 'color': // something interesting ... } ... default: // may as well be a

or a }

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:host { display: contents; } div.carousel { overflow-x: hidden; ... }

// show all the pictures

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document.createElement('x-carousel');

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var carousel = new Carousel();

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When I'm introspective about the last few years, I think the biggest mistake that we made as a company was betting too much on HTML5 as opposed to native. Because it just wasn't there. - Mark Zuckerberg, 2012

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It's not that HTML5 is bad. I'm actually, in the long-term, really excited about it. One of the things that's interesting is we actually have more people on a daily basis using Facebook on the mobile Web than we have using our iOS or Android apps combined.