New 'Slim' Build Highlights jQuery 3.0 Final Release
"We set out to create a slimmer, faster version of jQuery (with backwards compatibility in mind)," wrote Timmy Willison in a jQuery.com blog post yesterday.
In the new release, "We've removed all of the old IE workarounds and taken advantage of some of the more modern Web APIs where it made sense," Willison said. "It is a continuation of the 2.x branch, but with a few breaking changes that we felt were long overdue. While the 1.12 and 2.2 branches will continue to receive critical support patches for a time, they will not get any new features or major revisions. jQuery 3.0 is the future of jQuery."
The future of jQuery is available in a new "slim" version that doesn't include modules that might not be needed in many development projects.
"Sometimes you don't need Ajax, or you prefer to use one of the many standalone libraries that focus on Ajax requests," Willison said. "And often it is simpler to use a combination of CSS and class manipulation for all your Web animations. Along with the regular version of jQuery that includes the Ajax and effects modules, we're releasing a 'slim' version that excludes these modules. All in all, it excludes Ajax, effects, and currently deprecated code. The size of jQuery is very rarely a load performance concern these days, but the slim build is about 6k gzipped bytes smaller than the regular version -- 23.6k vs 30k."
Other enhancements include: compatibility with promises standards; the elimination of silent error cases; removal of deprecated event aliases; changes in the way animations work under the hood; speedier custom selectors and many more.
Willison thanked 29 developers who contributed to the new release, for which development started in October 2014.
"To assist with upgrading, we have a brand-new 3.0 Upgrade Guide," Willison said. "And the jQuery Migrate 3.0 plug-in will help you to identify compatibility issues in your code. Your feedback on the changes will help us greatly, so please try it out on your existing code and plug-ins!"
David Ramel is the editor of Visual Studio Magazine.