javascript: the who, what, when, where, why, & how
TRANSCRIPT
WHO, WHAT, WHEN, WHERE, WHY
JavaScript
About Me
Authored tamufeed.js GoMobile Tech TeamResponsive Web
Design
what
what
JavaScript is a lightweight, interpreted, object-oriented language with first-class functions.
the server side
1994 Netscape Enterprise Server1996 Microsoft IIS 3.0Today: Node.js
the client side
Adobe Flash, Google Chrome, Nexus 7, Firefox, Opera, Safari, iPad, Kindle PaperWhite, Windows 8, Internet Explorer 9, Windows Phone
The Language & Its Libraries
Like Java and .NET, JavaScript has its go-to libraries
Libraries! extend the present, polyfill the past, and pioneer the future
Links
MDN https://developer.mozilla.org/en-US/docs/JavaScript
MDN, Learn https://developer.mozilla.org/en-US/learn/
W3 http://www.w3.org/community/webed/wiki/Main_Page#JavaScript_core_skills
Future http://www.webPlatform.org http://pineapple.io/resources/tagged/javascrip
t?type=tutorials&sort=all_time
what it’s not
vbscriptpython
CoffeeScript
Google DartMicrosoft TypeScript
when
when
1995 Netscape 2.01996 IE 3.01997 Ecma-262 1999 Ecma-262 Ed.32009 Ecma-262 Ed.52011 Ecma-262 Ed.5.1
when
When do you JavaScript?
where
where
HTML5 Texas http://html5tx.com @jsconf http://jsconf.com http://texasJavaScript.com http://austinJavaScript.com
Follow the individuals
Who’s Who?
Douglas Crockford Y! http://www.crockford.com Brendan Eich N. @BrendanEich
http://BrendanEich.com John Resig jQ @jeresig http://ejohn.org Nicholas Zakas Y! @slicknet
http://www.nczonline.net Stoyan Stefanov Y! @stoyanstefanov
http://www.phpied.com Rebecca Murphy B! @rmurphey http://rMurphey.com Addy Osmani G. @addyosmani
http://addyosmani.com
why
why
Pervasive: It’s everywherePerformance: Browser Wars for the winMutable: JS lets you do stuffCommunity: Welcome to brogrammer culture MashupsCross Platform: Apps for Windows 8, to
iPhone, to AndroidCircumvent Your CMSResponsive Web Design
BEST PRACTICES
how
some best practices
best practices
Use meaningful variable namesWrite narrative code
best practices
Use object literals And JSON notationwhenever possible
best practices
Don’t pollute the global namespace.
best practices
Unobtrusive JavaScript
Code is decoupled from markup; only binding of behavior to DOM is the CSS selector.
Styles are decoupled from code (antipatterns: Twitter Badge JS, Titanium 2)
best practices
Use strict mode. Stick to The Good Parts
best practices
the module pattern
best practices
Isolate & minimize DOM access
best practices
Patterns
best practices
Enhance progressively and degrade gracefully.
best practices
Prefer JS libs over HTML5 API over ES5.1
best practices
Compress (e.g. YUI Compressor)Concatenate to avoid network latency &
HTTP overheadSynchronous JavaScripts blocks the browser,
so load last on the page
best practices
Know your JS engines when testing.
