link jQuery: The BasicsThis is a basic tutorial, designed to help you get started using jQuery. If you don't have a test page setup yet, start by creating the following HTML page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 <!doctype html><html><head> <meta charset="utf-8"> <title>Demo</title></head><body> <a href="http://jquery.com/">jQuery</a> … Continue reading
link Formatting ConventionsArticles in the learn site are authored with GitHub Flavored Markdown, and the beginning of each article contains some JSON "front matter" that contains metadata used when the article is published. link Article Header MetadataEach article should have the following header (see below as some metatags are optional): 1 2 3 4 5 … Continue reading
While jQuery does offer many Ajax-related convenience methods, the core $.ajax() method is at the heart of all of them, and understanding it is imperative. We'll review it first, and then touch briefly on the convenience methods. It's often considered good practice to use the $.ajax() method over the jQuery provided convenience methods. As you'll … Continue reading
jQuery Mobile provides a set of touch-friendly UI widgets and an Ajax-powered navigation system to support animated page transitions. This guide will show you how you can build your first jQuery Mobile application. link Create a Basic Page TemplateTo get started, you can simply paste the template below in your favorite text editor, save, and … Continue reading
While we hope to cover most jQuery-related topics on this site, you may need additional or more immediate support. The following resources can prove useful. link Official Forumshttp://forum.jquery.com/ There are many subforums where you can discuss jQuery, ask questions, talk about JavaScript, or announce your plugins. Getting Started This is the best place to post … Continue reading
link Theming OverviewjQuery Mobile has a robust theme framework that supports up to 26 sets of toolbar, content, and button colors, called a "swatch". The framework comes with five defined themes (swatches "a" to "e") which can be used readily, removed, or overwritten. link Default Theme Swatch Mapping for ComponentsIf no theme swatch letter is … Continue reading
link IntroductionEvent delegation allows us to attach a single event listener, to a parent element, that will fire for all descendants matching a selector, whether those descendants exist now or are added in the future. link ExampleFor the remainder of the lesson, we will reference the following HTML structure: 1 2 3 4 5 6 … Continue reading
Note: This documentation refers to functionality made available in jQuery UI 1.11. As of jQuery UI 1.11, all of the library's source files support using AMD. This means that you can manage your jQuery UI dependencies without using Download Builder, and load jQuery UI's source files asynchronously using an AMD loader such as RequireJS. In … Continue reading
A page can't be manipulated safely until the document is "ready." jQuery detects this state of readiness for you. Code included inside $( document ).ready() will only run once the page Document Object Model (DOM) is ready for JavaScript code to execute. Code included inside $( window ).on( "load", function() { … }) will run … Continue reading
jQuery provides simple methods for attaching event handlers to selections. When an event occurs, the provided function is executed. Inside the function, this refers to the DOM element that initiated the event. For details on jQuery events, visit the Events documentation on api.jquery.com. The event handling function can receive an event object. This object can … Continue reading
Traditionally webpages required reloading to update their content. For web-based email this meant that users had to manually reload their inbox to check and see if they had new mail. This had huge drawbacks: it was slow and it required user input. When the user reloaded their inbox, the server had to reconstruct the entire … Continue reading
Once you've made an initial selection with jQuery, you can traverse deeper into what was just selected. Traversing can be broken down into three basic parts: parents, children, and siblings. jQuery has an abundance of easy-to-use methods for all these parts. Notice that each of these methods can optionally be passed string selectors, and some … Continue reading
The most basic concept of jQuery is to "select some elements and do something with them." jQuery supports most CSS3 selectors, as well as some non-standard selectors. For a complete selector reference, visit the Selectors documentation on api.jquery.com. link Selecting Elements by ID 1 $( "#myId" ); // Note IDs must be unique per page. … Continue reading
jQuery offers several utility methods in the $ namespace. These methods are helpful for accomplishing routine programming tasks. For a complete reference on jQuery utility methods, visit the utilities documentation on api.jquery.com. Below are examples of a few of the utility methods: link $.trim()Removes leading and trailing whitespace: 1 2 // Returns "lots of extra … Continue reading
link Further Deferreds examplesDeferreds are used behind the hood in Ajax but it doesn't mean they can't also be used elsewhere. This section describes situations where deferreds will help abstract away asynchronous behavior and decouple our code. link Cachinglink Asynchronous cacheWhen it comes to asynchronous tasks, caching can be a bit demanding since you have … Continue reading
As of the 1.12 release, the jQuery UI widget factory includes a means of managing CSS class names through the classes option. This article will give you an overview of how the classes option works, and discuss what you can do with it. link Syntax overviewThe classes option is used to map structural class names … Continue reading
For complete documentation of jQuery manipulation methods, visit the Manipulation documentation on api.jquery.com. link Getting and Setting Information About ElementsThere are many ways to change an existing element. Among the most common tasks is changing the inner HTML or attribute of an element. jQuery offers simple, cross-browser methods for these sorts of manipulations. You can … Continue reading
Learning how and when to use jQuery is a different process for each and every web developer, depending largely on experience with the primary tools for front-end development (HTML, CSS, and JavaScript) and knowledge of general programming principles. Over the years developers of all stripes have come to rely on our API documentation for help … Continue reading
jQuery makes it possible to animate arbitrary CSS properties via the .animate() method. The .animate() method lets you animate to a set value, or to a value relative to the current value. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 // Custom effects with .animate()$( "div.funtimes" ).animate( { … Continue reading
jQuery makes it trivial to add simple effects to your page. Effects can use the built-in settings, or provide a customized duration. You can also create custom animations of arbitrary CSS properties. For complete details on jQuery effects, visit the Effects documentation on api.jquery.com.