fix: isElementOfType Improved type inference#2099
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## main #2099 +/- ##
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Coverage 46.59% 46.59%
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Files 679 679
Lines 38598 38598
Branches 9779 9779
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Partials 52 52
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bmingles
changed the title
isElementOfType Improved type inference
| ): node is ReactElement<InferComponentProps<T>> { | ||
| export function isElementOfType< | ||
| // eslint-disable-next-line @typescript-eslint/no-explicit-any | ||
| T extends string | JSXElementConstructor<any> = |
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Just curious for learning purposes, what is the reasoning for having to separately extend string here, not any other types?
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Element types are either string or a factory function. e.g. 'div' | 'span' | SomeComponent. This also matches the signature of the ReactElement 2nd generic arg
| ): node is ReactElement<InferComponentProps<T>> { | ||
| export function isElementOfType< | ||
| // eslint-disable-next-line @typescript-eslint/no-explicit-any | ||
| T extends string | JSXElementConstructor<any> = |
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Could have string | JSXElementConstructor<any> defined as a type above to make this a little nicer.
3 participants
I missed the 2nd generic argument when I first wrote this util which made the
typeproperty resolve tostring | React.JSXElementConstructor<any>in certain cases instead of the actual type. This should fix that.resolves #2094