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import * as React from "react";
function usePrevious<T>(value: T) {
// The ref object is a generic container whose current property is mutable ...
// ... and can hold any value, similar to an instance property on a class
const ref = React.useRef<T>(value);
// Store current value in ref
React.useEffect(() => {
ref.current = value;
}, [value]); // Only re-run if value changes
// Return previous value (happens before update in useEffect above)
return ref.current;
}
export { usePrevious };
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