Comments (5)
Actually now the most important would be to create some perf which shows any performance gain using passive approach. If you can prepare that, I'll make a change to library immediately.
Is it possible for you to create such test? It might event depend on browser's built-in developer tools. Just try to make lots of animations at once, and in one case use passive event and in the other don't do it.
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Now we are supporting only touch-or-scroll-blocking events, because that's where the problem exists.
Can you elaborate about any gains with having animation/transition connected events set as passive?
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Most probably the same gains - performance improvements. And I think the library can be easily modified to add new events. I can even prepare a PR for this if interested.
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I'll investigate that.
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I created a test with many elements all with transitions and many iterations. The results seems to be inconclusive. The difference is too low between passive and non-passive to say that there's a performance penalty for non-passive events for transitionend
.
The number of HTML elements and iterations can be easily configured. The results are displayed in the console as INFO messages - please disable DEBUG messages.
index.zip
Is there a similar test for scroll events?
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Related Issues (20)
- Unable to preventDefault inside passive event listener invocation. HOT 2
- 404 page demo.html HOT 5
- The routine doesn't work for YouTube videos embedded in iFrames HOT 8
- Error in console - Cannot read property 'capture' of null HOT 9
- Store link to original preventDefault method under separate property name HOT 8
- Broken `removeEventListener` HOT 1
- Doesn't work, even the example page HOT 4
- Cursor event not work while jquery is appending new content. HOT 2
- Desactivate passive mode for specific contents or specific elements. HOT 8
- this is not an issue as it seems HOT 2
- Issue with Select2 plugin HOT 3
- Question: where should I place the script to get the best result HOT 1
- About scroll event HOT 1
- Integration with Smooth Scroll e.g Locomotive Scroll HOT 2
- Remove sourceMappingURL from dist HOT 3
- Ability to provide/limit list of events
- CDN link 404 error HOT 1
- Unable to preventDefault inside passive event listener HOT 1
- Planned removal of crucial DOM events HOT 3
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