React.lazy #13398
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React.lazy #13398
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Details of bundled changes.Comparing: 2b30828...a15d2a0 react
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sebmarkbage
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Aug 14, 2018
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Pending changes on the base PR, but this one makes sense.
| // Lazily create thenable by wrapping in an extra thenable. | ||
| thenable = ctor(); | ||
| } | ||
| thenable.then(resolve, reject); |
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Even though we don't use the return value, others might want to. So it might be worth returning the result of this.
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| then(resolve, reject) { | ||
| if (thenable === null) { | ||
| // Lazily create thenable by wrapping in an extra thenable. | ||
| thenable = ctor(); |
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It would be good to set the closed over variable (ctor) to null so that it can be GC:ed since it won't be used anymore.
Lazily starts loading a component the first time it's rendered. The implementation is fairly simple and could be left to userspace, but since this is an important use case, there's value in standardization.
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Based on #13397
Lazily starts loading a component the first time it's rendered. The implementation is fairly simple and could be left to userspace, but since this is an important use case, there's value in standardization.
Final name is TBD. I went with
lazyfor now because it's short and descriptive.I put it on the main React export because it's small and importing this at the top of every file will get old really quickly.