jQuery 1.7 Events

1.7 Event Goals: Simplify the API

1.7 Event Goals: Make It Faster!

1.7 Event Goals: Reduce Overall Size

1.7 Event Goals: Fix Existing Bugs

1.7 Event Goals: Don’t Break It

.on() and .off() ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Benefits ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Yes: bind, live, delegate work in 1.7!

Event Delegation is Great, But … ,[object Object],[object Object],[object Object],[object Object]

Don’t Make Me Bubble, Bro! ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Defeat Selector-Match Bottlenecks!

Test Case Profile in 1.6.3: 15.1 secs

Test Case Profile in 1.7: 5.6 secs

JavaScript is Slower than C … ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

A Plan Materializes: quickIs() ,[object Object],[object Object],[object Object],[object Object],[object Object]

How Fast Is It Now? Delegated event delivery time (milliseconds): Let us not speak of event overhead again. Browser jQuery 1.6.3 jQuery 1.7 Beta Chrome 13 3.0 1.1 (2.8x) Firefox 6 4.0 1.5 (2.7x) IE 7 55.6 13.1 (4.2x) IE 9 9.6 2.3 (4.1x) IE10 PP 8.2 2.1 (3.9x)

Make Events More Hookable ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Internet Explorer Can’t Be Forgotten

Change/Submit for IE 6, 7, 8 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Event Bugs Fixed in 1.7 ,[object Object],[object Object],Open Bugs Open Feature Requests jQuery 1.6.4 28 4 jQuery 1.7 beta 3 1

It Do All Things! What You Think? ,[object Object],[object Object],[object Object]

jQuery 1.7 Events

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jQuery 1.7 Events