Dr. Dobb's is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Channels ▼

Web Development

JQuery Rewritten To Create jQ.Mobi For iOS and Android

With smartphone penetration levels still spiralling, management technologies for the cellular market continue to proliferate in line with the market's wider growth. In what appears to be a response to this opportunity, appMobi has released the jQ.Mobi open source development framework for mobile. This mobile-optimized HTML5 rewrite of the jQuery framework promises to perform 2.5 times faster than JQuery itself. It also has a "particular focus" on delivering an identical user experience on both iOS and Android devices.

As a JavaScript framework, jQ.Mobi provides a user interface and programming function environment that may prove familiar (and popular) with developers given their existing skills. With this release, appMobi has made a conscious effort to move on from existing JavaScript UI frameworks like JQuery Mobile, JQTouch, and Sencha Touch, which trace their heritage back to desktop browsers and HTML4.

jQ.Mobi includes a query selector engine, a user interface (UI) library, and a collection of plugins. Its development team specifies that jQ.Mobi outperforms jQuery by 3X on Android and 2.2X on iOs. The JSPERF.COM test suite enables comparison of raw engine performance by testing the three most common functions: single query selector, create element, and append element — and this is the measure that has been used in this instance.

"The truth is, the single biggest issue facing mobile HTML5 developers is the lack of good user interfaces — and there is nothing more critical to the success of mobile HTML5 in general. Apple set the bar high with its Cocoa Touch mobile interface and until now, similar quality UX tools haven't existed for web-based mobile developers and that is why we've put this project into play. We've started this project with high expectations, focused around delivering speed, size advantages, and cross platform uniformity. We look forward to seeing where the open source development community takes it from here," said Sam Abadir, appMobi CTO and founder.

The jQ.Mobi engine weighs in at 3741 bytes, a mere one-tenth of jQuery and under half of Zepto. appMobi says that code size is important for user interactivity in mobile because heavier pages take longer to load and to initialize. The jQ.Mobi UI code is also fairly small, coming in at 15K gZipped. By comparison, jQueryMobile UI is 62K and SenchaTouch weighs in at 99K.

jQ.Mobi will be offered free of charge as an open source asset under the MIT X11 license starting with a short private beta testing period, which is in process now.

Related Reading

More Insights

Currently we allow the following HTML tags in comments:

Single tags

These tags can be used alone and don't need an ending tag.

<br> Defines a single line break

<hr> Defines a horizontal line

Matching tags

These require an ending tag - e.g. <i>italic text</i>

<a> Defines an anchor

<b> Defines bold text

<big> Defines big text

<blockquote> Defines a long quotation

<caption> Defines a table caption

<cite> Defines a citation

<code> Defines computer code text

<em> Defines emphasized text

<fieldset> Defines a border around elements in a form

<h1> This is heading 1

<h2> This is heading 2

<h3> This is heading 3

<h4> This is heading 4

<h5> This is heading 5

<h6> This is heading 6

<i> Defines italic text

<p> Defines a paragraph

<pre> Defines preformatted text

<q> Defines a short quotation

<samp> Defines sample computer code text

<small> Defines small text

<span> Defines a section in a document

<s> Defines strikethrough text

<strike> Defines strikethrough text

<strong> Defines strong text

<sub> Defines subscripted text

<sup> Defines superscripted text

<u> Defines underlined text

Dr. Dobb's encourages readers to engage in spirited, healthy debate, including taking us to task. However, Dr. Dobb's moderates all comments posted to our site, and reserves the right to modify or remove any content that it determines to be derogatory, offensive, inflammatory, vulgar, irrelevant/off-topic, racist or obvious marketing or spam. Dr. Dobb's further reserves the right to disable the profile of any commenter participating in said activities.

Disqus Tips To upload an avatar photo, first complete your Disqus profile. | View the list of supported HTML tags you can use to style comments. | Please read our commenting policy.