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Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
Building Interactive Prototypes with jQuery
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Building Interactive Prototypes with jQuery

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Talk I gave at @Media Ajax in 2007.

Talk I gave at @Media Ajax in 2007.

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  • 1. Building InteractivePrototypes with jQuery @Media Ajax - November 2007 John Resig (ejohn.org)
  • 2. What is jQuery?✦ An open source JavaScript library that simplifies the interaction between HTML and JavaScript.
  • 3. Ideal for Prototyping✦ Completely unobtrusive✦ Uses CSS to layer functionality✦ Easy to separate behavior✦ Quick, terse, syntax
  • 4. The Focus of jQueryFind Some Elements Do something with them { { $(“div”).addClass(“special”); jQuery Object
  • 5. The jQuery Object✦ Commonly named ‘$’✦ Also named ‘jQuery’✦ Completely valid: ✦ jQuery(“div”).addClass(“special”);
  • 6. Find Some Elements...✦ Full CSS Selector 1-3 Support✦ Basic XPath✦ Better CSS Selector support than most browsers
  • 7. $(“div”)<div id=”body”> <h2>Some Header</h2> <div class=”contents”> <p>...</p> <p>...</p> </div></div>
  • 8. $(“#body”)<div id=”body”> <h2>Some Header</h2> <div class=”contents”> <p>...</p> <p>...</p> </div></div>
  • 9. $(“div#body”)<div id=”body”> <h2>Some Header</h2> <div class=”contents”> <p>...</p> <p>...</p> </div></div>
  • 10. $(“div.contents p”) <div id=”body”> <h2>Some Header</h2> <div class=”contents”> <p>...</p> <p>...</p> </div> </div>
  • 11. $(“div > div”)<div id=”body”> <h2>Some Header</h2> <div class=”contents”> <p>...</p> <p>...</p> </div></div>
  • 12. $(“div:has(div)”) <div id=”body”> <h2>Some Header</h2> <div class=”contents”> <p>...</p> <p>...</p> </div> </div>
  • 13. Do something with them✦ DOM Manipulation (append, prepend, remove)✦ Events (click, hover, toggle)✦ Effects (hide, show, slideDown, fadeOut)✦ AJAX (load, get, post)
  • 14. DOM Manipulation✦ $(“a[target]”) .append(“ (Opens in New Window)”);✦ $(“#body”).css({ border: “1px solid green”, height: “40px” });
  • 15. Events✦ $(“form”).submit(function(){ if ( $(“input#name”).val() == “” ) $(“span.help”).show(); });✦ $(“a#open”).click(function(){ $(“#menu”).show(); return false; });
  • 16. Animations✦ $(“#menu”).slideDown(“slow”);✦ Individual properties: $(“div”).animate({ fontWeight: “2em”, width: “+=20%”, color: “green” // via plugin });✦ Callbacks: $(“div”).hide(500, function(){ // $(this) is an individual <div> element $(this).show(500); });
  • 17. Ajax✦ $(“#body”).load(“sample.html div > h1”); ✦ Before: <div id=”body”></div> ✦ After: <div id=”body”> <h1>Hello, world!</h1> </div>✦ $.getJSON(“test.json”, function(js){ for ( var name in js ) $(“ul”).append(“<li>” + name + “</li>”); });
  • 18. Chaining✦ You can have multiple actions against a single set of elements✦ $(“div”).hide();✦ $(“div”).hide().css(“color”,”blue”);✦ $(“div”).hide().css(“color”,”blue”).slideDown();
  • 19. Chaining (cont.)✦ $(“ul.open”) // [ ul, ul, ul ] .children(“li”) // [ li, li, li ] .addClass(“open”) // [ li, li, li] .end() // [ ul, ul, ul ] .find(“a”) // [ a, a, a ] .click(function(){ $(this).next().toggle(); return false; }) // [ a, a, a ] .end(); // [ ul, ul, ul ]
  • 20. Why jQuery?✦ Fully documented✦ Great community✦ Tons of plugins✦ Small size (14kb)✦ Everything works in IE 6+, Firefox, Safari 2+, and Opera 9+
  • 21. jQuery Plugins✦ Extend the jQuery system✦ Add on extra methods: $(“div”).hideRemove();✦ Trivial to implement: jQuery.fn.hideRemove = function(speed){ return this.hide(speed, function(){ jQuery(this).remove(); }); };
  • 22. Plugins✦ Drag and Drop✦ Sortables✦ Modal Dialogs✦ Tabbed Navigation✦ Sortable Tables✦ And hundreds more...
  • 23. Prototyping Demos
  • 24. Accordion Menu http://jquery.com/files/apple/http://jquery.com/files/apple/done.html
  • 25. Social Networking http://jquery.com/files/social/ http://jquery.com/files/social/done.php
  • 26. Todo List http://jquery.com/files/todo/http://jquery.com/files/todo/done.php
  • 27. Who uses jQuery?✦ Google✦ IBM✦ NBC✦ Amazon✦ Wordpress✦ Digg✦ many others...
  • 28. Community✦ Very active mailing list ✦ 108+ Posts/Day ✦ 4000+ Members✦ Technorati: Dozens of blog posts per day
  • 29. Books✦ 2 Books Released: ✦ Learning jQuery (Packt) ✦ jQuery Reference (Packt)✦ 1 Book in Progress: ✦ jQuery in Action (Manning)
  • 30. jQuery UI✦ Full set of themed widgets and components✦ Drag & Drop✦ Tabs✦ Table✦ Modal Dialog✦ etc.
  • 31. jquery.comdocs.jquery.com - jquery.com/plugins More: ui.jquery.com visualjquery.com learningjquery.com

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