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使用infer推断出React.Ref<T>里的T类型
2023-06-09 17:41:49
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```tsx type InputRefType<T> = T extends React.Ref<infer ElementType> ? ElementType : never; const inputRef = useRef<HTMLInputElement>(null) type MyInputRefType = InputRefType<typeof inputRef> const a: React.RefObject<MyInputRefType> = inputRef a.current?.focus() ```
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react forwardRef导致泛型丢失
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React.Ref，React.RefObject 和 React.MutableRefObject区别
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