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backend/frontend/node_modules/@restart/hooks/cjs/useIsInitialRenderRef.js
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28
backend/frontend/node_modules/@restart/hooks/cjs/useIsInitialRenderRef.js
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"use strict";
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exports.__esModule = true;
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exports.default = useIsInitialRenderRef;
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var _react = require("react");
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/**
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* Returns ref that is `true` on the initial render and `false` on subsequent renders. It
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* is StrictMode safe, so will reset correctly if the component is unmounted and remounted.
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*
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* This hook *must* be used before any effects that read it's value to be accurate.
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*/
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function useIsInitialRenderRef() {
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const effectCount = (0, _react.useRef)(0);
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const isInitialRenderRef = (0, _react.useRef)(true);
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(0, _react.useLayoutEffect)(() => {
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effectCount.current += 1;
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if (effectCount.current >= 2) {
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isInitialRenderRef.current = false;
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}
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});
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// Strict mode handling in React 18
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(0, _react.useEffect)(() => () => {
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effectCount.current = 0;
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isInitialRenderRef.current = true;
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}, []);
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return isInitialRenderRef;
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}
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