Refactor event object creation for the experimental event API #15295
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ReactDOM: size: 0.0%, gzip: 0.0% Details of bundled changes.Comparing: f243dea...2b5dde8 react-dom
react-events
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necolas
reviewed
Apr 2, 2019
necolas
approved these changes
Apr 2, 2019
| let i, length; | ||
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| if (capture !== null) { | ||
| for (i = capture.length; i-- > 0; ) { |
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| for (i = capture.length; i-- > 0; ) { | |
| for (let i = capture.length - 1; i > 0; i -= 1) { |
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I actually find that a bit harder to read, maybe it's me?
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I find @necolas's version to be more idiomatic.
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The version I used was also the same as the one currently in React, not that it matters.
TBH it's all personal preference, if you both feel strongly, I can address in a follow up later this week :)
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| if (bubble !== null) { | ||
| for (i = 0, length = bubble.length; i < length; ++i) { |
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| for (i = 0, length = bubble.length; i < length; ++i) { | |
| for (let i = 0; i < bubble.length; i += 1) { |
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I moved the length out intentionally here, just because it's generally faster at runtime.
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This PR refactors the experimental event API to use event objects at the point of the responder module, rather than via indirection through the responder context
dispatchEvent. This allows responder events to be strongly typed and it also means we can avoid using the plugin event system to dispatch the event and instead handle the event directly within the responder system itself.Furthermore, this removes
stopPropagationandpreventDefaultfrom event objects. The short term expectation is that their functionality will exist again but, instead of imperative method calls, the behaviour will live inside the React component tree. This will happen in follow up PRs.