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What is Fearless JavaScript?

Fearless JavaScript is an ongoing series of workshops offered by members of the Fluid community. It is designed to provide attendees with a grounding in the essential techniques of modern JavaScript programming. Topics include:

  • Why JavaScript?
  • Fundamentals of JavaScript
  • Using jQuery
  • JavaScript in Sakai
  • Portal and mash-up friendliness
  • Accessibility

Everyone is welcome to attend the Fearless JavaScript workshop. It's assumed that you have some understanding of at least one programming language, and that you'll bring a laptop to follow along with the hands-on exercises.

When is the Next Fearless JavaScript Workshop?

Fearless JavaScript 2.0

Sakai Summer 2008 Conference, Paris, France
Monday, June 30, 2008
13:30 - 16:30

Presentation

Presenters

  • Colin Clark, Fluid Project Technical Lead, ATRC, University of Toronto
  • Eli Cochran, User Interaction Developer, ETS, UC Berkeley
  • Nicolaas Matthjis, Researcher, CARET, University of Cambridge

Goals

  • Provide developers with a strong foundation in client-side development with JavaScript, HTML, and CSS
  • Train prospective volunteers and collaborators in quality, accessible JavaScript programming techniques
  • Help communities avoid common JavaScript programming pitfalls by offering viable alternatives
  • Encourage the early adoption of Fluid products and philosophy

Audience

  • Web developers of all stripes (experience with at least one programming language, basic understanding of the Web's architecture)
  • Working knowledge of portlets and portals
  • Basic understanding of HTML and CSS

Philosophy

  • Unobtrusiveness
    • Separation of code and content
    • Graceful degradation
    • Using the DOM as a API for components, leveraging jQuery's strengths
  • Accessibility
    • Multimodal: works with keyboard and mouse
    • Configurable: doesn't hardcode expectations about control or bindings
    • Flexible: works with a variety of presentations and layouts
    • Accessibility doesn't have to be hard
  • Portal-friendliness
    • Comprehensive namespacing: JavaScript code and markup
    • Privacy
  • Javascript isn't Java
    • It's buggy, but it's powerful
    • Prototypal inheritance
    • Dynamic language
    • Objects as general containers

Workshop Outline

  • Introductions
    • Getting setup
    • Using the example code
  • Why Javascript? (Eli)
    • Why JavaScript? Why DHTML? Why AJAX? Why bother?
    • Why DHTML/client-side at all?
    • Why not Flash or Silverlight?
    • Modern JavaScript
  • Javascript 101 (Colin)
    • JavaScript is different
    • History
    • Part 1: The Basics
      • Variables
      • Numbers
      • Strings
      • null
      • undefined
      • Objects and Arrays
    • Part 2: functions and scope
      • Functions are first class
      • Ways to call a function
      • Determining types
      • Prototypal Inheritance
      • Understanding this
      • Scoping rules
      • Closures
    • Objects as general containers
    • Type system: typeof/instanceof; truthy & falsey; coercion
    • Functions are first-class objects
    • Functions have context: how "this" works in JavaScript
    • Inheritance
      • Instantiating functions: the "new" keyword
      • Prototypes, not classes
    • Why extending built-in types sucks
    • Closures: encapsulating, hiding, and currying
    • Using closures for namespacing and privacy
  • MyCamTools: JavaScript in Sakai (Nico)
    • Goals
    • Backend: sData and EntityBroker
    • JSON data feeds
    • Front end: Widgets
      • How they're structured
      • Libraries used
    • Examples
  • JavaScript for Portals and Mashups (Colin)
    • Portals and mash-ups put extra constraints on your JavaScript
      • Multiple instances
      • Lots of different JavaScript code running
      • High chance of collisions
      • Can't expect control of the document
    • Put code in a unique namespace
    • Use closures for privacy
    • Be unobtrusive
    • Support multiple instances
    • Constrain selectors to a specific fragment
    • How Fluid components are built
      • Unobtrusiveness
      • Markup agnosticism
      • Highly configurable
  • Javascript Accessibility (Colin)
    • What is accessibility?
    • Fluid's accessibility vision
    • Why most DHTML is inaccessible
    • Keyboard accessibility
    • ARIA and assistive technologies
    • jQuery plugins: keyboard-a11y and jARIA
  • Putting it all together: building a widget with MyCamTools and Fluid

Previous Editions of Fearless JavaScript

  • Fearless JavaScript 1.0: Writing Fearless Javascript for Portlets, Widgets, and Portals
    • Presented on Sunday, April 27, 2008 at the JA-SIG Spring 2008 conference in St. Paul, MN.
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