Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Zero to Hero, a jQuery Primer
Search
Matthew Buchanan
September 15, 2011
Programming
8
390
Zero to Hero, a jQuery Primer
Presented to Auckland Web Meetup, 15 September 2011.
Matthew Buchanan
September 15, 2011
Tweet
Share
More Decks by Matthew Buchanan
See All by Matthew Buchanan
Better Letters
matthewbuchanan
2
140
Pragmatic Approaches to the Mobile Web
matthewbuchanan
0
100
Map Local and other works of Staggering Genius
matthewbuchanan
1
130
The State of Web Type
matthewbuchanan
5
290
Web Bites
matthewbuchanan
2
130
Tumblr 20x20
matthewbuchanan
3
170
Web Typography
matthewbuchanan
5
330
Other Decks in Programming
See All in Programming
Is Xcode slowly dying out in 2025?
uetyo
1
210
Benchmark
sysong
0
270
VS Code Update for GitHub Copilot
74th
1
470
git worktree × Claude Code × MCP ~生成AI時代の並列開発フロー~
hisuzuya
1
510
Java on Azure で LangGraph!
kohei3110
0
170
A2A プロトコルを試してみる
azukiazusa1
2
1.2k
地方に住むエンジニアの残酷な現実とキャリア論
ichimichi
5
1.4k
Code as Context 〜 1にコードで 2にリンタ 34がなくて 5にルール? 〜
yodakeisuke
0
110
LT 2025-06-30: プロダクトエンジニアの役割
yamamotok
0
570
5つのアンチパターンから学ぶLT設計
narihara
1
120
PostgreSQLのRow Level SecurityをPHPのORMで扱う Eloquent vs Doctrine #phpcon #track2
77web
2
400
What Spring Developers Should Know About Jakarta EE
ivargrimstad
0
310
Featured
See All Featured
Git: the NoSQL Database
bkeepers
PRO
430
65k
Easily Structure & Communicate Ideas using Wireframe
afnizarnur
194
16k
Improving Core Web Vitals using Speculation Rules API
sergeychernyshev
17
950
Typedesign – Prime Four
hannesfritz
42
2.7k
A designer walks into a library…
pauljervisheath
207
24k
The Web Performance Landscape in 2024 [PerfNow 2024]
tammyeverts
8
670
Stop Working from a Prison Cell
hatefulcrawdad
270
20k
Exploring the Power of Turbo Streams & Action Cable | RailsConf2023
kevinliebholz
34
5.9k
Music & Morning Musume
bryan
46
6.6k
RailsConf 2023
tenderlove
30
1.1k
Visualization
eitanlees
146
16k
Being A Developer After 40
akosma
90
590k
Transcript
0 TO HERO SEPTEMBER 2011 A jQuery Primer
WHAT JavaScript framework Cross-browser compatible Lightweight (31KB) APIs for DOM,
events, animation, Ajax
WHY Most popular Concise Well documented and maintained Extensible via
plugins Easy for designers
HOW Either self-host or include from CDN <head> <script src="http://code.jquery.com/
jquery-‐1.6.3.min.js"></script> </head>
CORE The core is the jQuery() function, a standard JavaScript
function To save space, it’s aliased to $() Revert with jQuery.noConflict()
SELECTION Given this HTML element <div id="menu"></div> Select it with
jQuery("#menu") or simply $("#menu")
SELECTION <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul>
SELECTION <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul> $("h1")
SELECTION <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul> $(":header")
SELECTION <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul> $("ul")
SELECTION <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul> $(".benefits")
SELECTION <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul> $("ul
li")
SELECTION <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul> $("ul
li:eq(1)")
SELECTION <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul> $("ul
li:not(:first)")
Accepts CSS 2 & 3 selectors, such as $("article >
section") $(".menu li:last-‐child") $("a[href^='http://']") $("table tr:nth-‐child(2n+1) td") Uses cross-browser Sizzle engine SELECTION
And custom extensions, such as :visible, :hidden, :focus, :disabled :eq(),
:lt(), :gt(), :even, :odd :empty, :not(), :has(), :contains() :input, :checkbox, :radio, :file :header, :text, :image CUSTOM
DIY Or make your own selectors $.expr[":"].parked = function(obj){…}; and
apply them $(".blues:parked").each(…);
OBJECTS Using jQuery with objects $(document) $(window) Define the current
context $(this)
OBJECTS For example $("div").hover(function() { $(this).addClass("on"); }, function() {…});
CORE Code is generally run when DOM is ready window.onload
= function(){…} $(document).ready(function(){…}); Can be called repeatedly, and shortened to $(function(){…});
CORE jQuery deals in ‘collections’ of one or more objects,
so $("ul li") returns a collection of all matching elements
CORE Some JavaScript properties work with collections $("ul li").length As
well as array indices to isolate individual DOM nodes $("ul li")[0]
TIP When assigning jQuery collections to variables, prefix with $
var $myList = $("#mylist"); Useful reminder as to a variable’s type.
CORE jQuery uses JavaScript syntax for conditional statements, loops, etc.
if (this > that) { $("nav").hide(); } else {…}
METHODS Now for the cool stuff. Call jQuery methods to
manipulate objects, data and collections $("ul li").slideDown() $("ul li").addClass()
METHODS Attribute Methods .val(), .attr(), .prop() .addClass(), .removeClass() .hasClass(), .toggleClass()
and more…
METHODS <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul>
METHODS <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul> $("ul").addClass("big")
METHODS <h1>jQuery Notes</h1> <ul class="benefits big"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul>
$("ul").addClass("big")
METHODS CSS / Dimension Methods .css(), .height(), .width() .innerHeight(), outerHeight()
.innerWidth(), .outerWidth() .offset(), .position() and more…
METHODS <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul>
METHODS <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul> $("h1").css("color",
"lime")
METHODS <h1 style="color:lime"> jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> …
$("h1").css("color", "lime")
METHODS Traversal Methods .each(), .find(), .filter() .children(), .siblings(), .end() .first(),
.last(), .next(), .prev() .parent(), .andSelf(), .closest() and more…
METHODS <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul>
METHODS <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul> $(".benefits").prev()
METHODS <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul> $(".benefits").prev()
METHODS <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul> $("*").filter(":last-‐child")
METHODS <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul> $("*").filter(":last-‐child")
METHODS Manipulation Methods .after(), .before() .clone(), .detach(), .remove() .append(), .prepend(),
.text() .html(), .wrap(), .unwrap() and more…
METHODS <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul>
METHODS <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul> $("ul").prepend("<li>First!</li>")
METHODS <h1>jQuery Notes</h1> <ul class="benefits"> <li>First!</li> <li>Popular</li> <li>Concise</li> … $("ul").prepend("<li>First!</li>")
METHODS <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul> $("ul").insertBefore("h1")
METHODS <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul> <h1>jQuery Notes</h1> $("ul").insertBefore("h1")
METHODS <h1>jQuery Notes</h1> <ul class="benefits"> <li>Popular</li> <li>Concise</li> <li>Extensible</li> </ul> $("li").unwrap()
METHODS <h1>jQuery Notes</h1> <li>Popular</li> <li>Concise</li> <li>Extensible</li> $("li").unwrap()
METHODS Effects Methods .hide(), .show() .animate(), .delay(), .stop() .fadeIn(), .fadeOut(),
.fadeToggle() .slideUp(), .slideDown() and more…
METHODS Events Methods .click(), .bind(), .live() .focus(), .blur(), .hover() .mouseenter(),
.mouseleave() .load(), .resize(), .scroll() and more…
METHODS Ajax Methods .load(), .ajax() .get(), .post(), .param() .getJSON(), .getScript()
.serialize(), .serializeArray() and more…
METHODS if (!document.ELEMENT_NODE) { document.ELEMENT_NODE = 1; document.ATTRIBUTE_NODE =
2; document.TEXT_NODE = 3; document.CDATA_SECTION_NODE = 4; document.ENTITY_REFERENCE_NODE = 5; document.ENTITY_NODE = 6; document.PROCESSING_INSTRUCTION_NODE = 7; document.COMMENT_NODE = 8; document.DOCUMENT_NODE = 9; document.DOCUMENT_TYPE_NODE = 10; document.DOCUMENT_FRAGMENT_NODE = 11; document.NOTATION_NODE = 12; } document._importNode = function(node, allChildren) { switch (node.nodeType) { case document.ELEMENT_NODE: var newNode = document.createElement(node.nodeName); if (node.attributes && node.attributes.length > 0) for (var i = 0; il = node.attributes.length; i < il) newNode.setAttribute(node.attributes[i].nodeName, node.getAttribute(node.attributes[i++].nodeName)); if (allChildren && node.childNodes && node.childNodes.length > 0) for (var i = 0; il = node.childNodes.length; i < il) newNode.appendChild(document._importNode(node.childNodes[i++], allChildren)); return newNode; break; case document.TEXT_NODE: case document.CDATA_SECTION_NODE: case document.COMMENT_NODE: return document.createTextNode(node.nodeValue); break; } }; www.alistapart.com/articles/crossbrowserscripting
METHODS $("div").load("index.html");
METHODS $("div").load("index.html #main");
METHODS As well as methods for… Array handling Forms manipulation
File parsing Feature detection and more…
CHAINING Most methods return the same jQuery collection, and can
be chained in sequence $("div:hidden") .text("Error") .css("color","red") .fadeIn();
CHAINING If a method returns a new collection, return to
the previous collection using end() $("div").find("a") .addClass("mute") .end() .find("b").hide();
CALLBACKS Some methods allow more code to be executed once
they complete (a ‘callback’) $("div").animate( {top: 50}, function() {…} );
DEMO Given the following markup <p>…</p> how might we show
the user a success message above the text?
DEMO One solution var message = "Page saved";
$("<div>", {class: "msg"}) .text(message) .insertBefore("p") .hide().fadeIn();
DEMO Page saved Single-origin coffee viral aesthetic, jean shorts master
cleanse tofu yr lo-fi chambray sartorial beard +1 retro photo booth. Pitchfork williamsburg beard vinyl wes anderson. Mlkshk brooklyn portland 3 wolf moon readymade iphone food truck. Austin lomo messenger bag, mcsweeney’s gentrify tattooed vegan fixie.
$("<div>", {class: "msg"}) .text(message) .insertBefore("p").hide() .css("opacity", 0) .slideDown(function() { $(this).css("opacity",
1) .hide().fadeIn(); }); BETTER?
DEMO Page saved Single-origin coffee viral aesthetic, jean shorts master
cleanse tofu yr lo-fi chambray sartorial beard +1 retro photo booth. Pitchfork williamsburg beard vinyl wes anderson. Mlkshk brooklyn portland 3 wolf moon readymade iphone food truck. Austin lomo messenger bag, mcsweeney’s gentrify tattooed vegan fixie.
PLUGINS Plugins allow you to extend the jQuery model to
include new methods. Galleries, lightboxes Form validation, input masks Layout control Drag & drop, sliders, calendars, etc.
PLUGINS Creating your own plugin is easy $.fn.addIcon = function()
{ return this.prepend( $("<span>", {class: "icon"}) ); }
PLUGINS Creating your own plugin is easy $(":header").addIcon();
PLUGINS Last week from Paravel and Chris Coyier, a plugin
for fluid-width video embeds…
WHERE jquery.com plugins.jquery.com jqapi.com code.google.com/apis/libraries/ fitvidsjs.com hipsteripsum.me
Matthew Buchanan / @mrb matthewbuchanan.name www.cactuslab.com .end()