喜大普奔！jQuery发布 3.0 最终版

jQuery 3.0 最终版发布了。jQuery 3.0将是jQuery的未来。但如果你需要IE6-8支持，您可以继续使用最新版本1.12。

为了帮助用户升级，jQuery 发布了，以及 将帮助您识别代码中的兼容性问题。

您可以从jQuery CDN获取文件，或者直接访问链接：

您也可以从以下npm获得更新：

npm install jquery@3.0.0

此外，jQuery Migrate 3.0 也更新了。地址：

npm install jquery-migrate@3.0.0

更新日志：

Ajax

• Golf away 21 bytes ()

• Preserve URL hash on requests (, )

• Execute jQuery#load callback with correct context (, )

• Ensure ajaxSettings.traditional is still honored (, )

• Remove unnecessary use of jQuery.trim ()

Attributes

• Avoid infinite recursion on non-lowercase attribute getters (, )

• Add a support comment & fix a link @ tabIndex hook ()

• Strip/collapse whitespace for set values on selects (, )

• Remove redundant parent check ()

• Fix setting selected on an option in IE<=11 (, )

CSS

• Don't workaround the IE 11 iframe-in-fullscreen sizing issues (, )

• Toggle detached elements as visible unless they have display: none (, )

• Make sure elem.ownerDocument.defaultView is not null (, )

• Add animation-iteration-count to cssNumber (, )

• Restore cascade-override behavior in .show (, , )

• Stop Firefox from treating disconnected elements as cascade-hidden (, )

Core

• Implement ready without Deferred (, , )

• Improve isNumeric logic and test coverage (, )

• Set the base href of the context in parseHTML (, )

• Simplify isPlainObject (, )

• Add test for `jQuery.isPlainObject(localStorage)` ()

• Do not expose second argument of the `jQuery.globalEval` ()

• Deprecate jQuery.parseJSON (, )

Deferred

• Separate the two paths in jQuery.when (, )

• Provide explicit undefined context for jQuery.when raw casts (, )

• Remove default callback context (, )

• Warn on exceptions that are likely programming errors (, )

• Propagate progress correctly from unwrapped promises (, )

• Make jQuery.when synchronous when possible (, )

• Remove undocumented progress notifications in $.when (, )

• Give better stack diagnostics on exceptions ()

Dimensions

• Add tests for negative borders & paddings ()

Docs

• Fix various spelling errors ()

• Update support comments related to IE ()

• Fix an incorrect comment in the attributes module ()

• Updated links to https where they are supported. ()

• Update support comments to follow the new syntax ()

• Use https where possible ()

• Use HTTPS URLs for jsfiddle & jsbin ()

• Add FAQ to reduce noise in issues ()

• Add a note about loading source with AMD (, )

• Add note about code organization with AMD (, )

• Reference new feature guidelines and API tenets (, )

Effects

• Remove width/height exception for oldIE (, )

• Add tests for using jQuery.speed directly (, )

Event

• Allow constructing a jQuery.Event without a target (, )

• Add touch event properties, eliminates need for a plugin (, )

• Add the most commonly used pointer event properties ()

• Remove fixHooks, propHooks; switch to ES5 getter with addProp (, , )

• Make event dispatch optimizable by JavaScript engines ()

• Evaluate delegate selectors at add time (, )

• Cover invalid delegation selector edge cases ()

• Fix chaining .on() with null handlers (, )

• Remove pageX/pageY fill for event object (, )

Events

• Don't execute native stop(Immediate)Propagation from simulation (, )

Manipulation

• Bring tagname regexes up to spec (, )

Offset

• Resolve strict mode ClientRect “no setter” exception ()

Selector

• filters -> pseudos (, )

• Update Sizzle to 2.3.0 ()

• Add jQuery.escapeSelector (, )

Serialize

• Treat literal and function-returned null/undefined the same (, )

• Reduce size ()

Support

• Improve support properties computation (, )

Tests

• Take Safari 9.1 into account ()

• Limit selection to #qunit-fixture in attributes.js ()

• Set Edge's expected support for clearClone  to true ()

• Fix Deferred tests in Android 5.0's stock Chrome browser & Yandex.Browser ()

• Add additional test for jQuery.isPlainObject ()

• Build: update QUnit and fix incorrect test ()

• Fix manipulation tests in Android 4.4 ()

• Remove side-effects of one attributes test ()

• Account for new offset tests ()

• Make iframe tests wait after checking isReady ()

• Refactor testIframe() to make it DRYer and more consistent ()

• Weaken sync-assumption from jQuery.when to jQuery.ready.then ()

• Test element position outside view (, )

• Make the regex catching Safari 9.0/9.1 more resilient ()

Traversing

• .not/.filter consistency with non-elements (, )

• Never let .closest() match positional selectors (, )

• Restore jQuery push behavior in .find (, )

详情：