31 lines
877 B
JavaScript
31 lines
877 B
JavaScript
var $kjM8v$react = require("react");
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function $parcel$export(e, n, v, s) {
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Object.defineProperty(e, n, {get: v, set: s, enumerable: true, configurable: true});
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}
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$parcel$export(module.exports, "usePrevious", () => $11bc82d0001dc9a8$export$5cae361ad82dce8b);
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function $11bc82d0001dc9a8$export$5cae361ad82dce8b(value) {
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const ref = $kjM8v$react.useRef({
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value: value,
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previous: value
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}); // We compare values before making an update to ensure that
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// a change has been made. This ensures the previous value is
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// persisted correctly between renders.
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return $kjM8v$react.useMemo(()=>{
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if (ref.current.value !== value) {
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ref.current.previous = ref.current.value;
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ref.current.value = value;
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}
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return ref.current.previous;
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}, [
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value
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]);
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}
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//# sourceMappingURL=index.js.map
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