16 lines
565 B
JavaScript
16 lines
565 B
JavaScript
"use strict";
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var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard").default;
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = useMemo;
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var React = _interopRequireWildcard(require("react"));
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function useMemo(getValue, condition, shouldUpdate) {
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var cacheRef = React.useRef({});
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if (!('value' in cacheRef.current) || shouldUpdate(cacheRef.current.condition, condition)) {
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cacheRef.current.value = getValue();
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cacheRef.current.condition = condition;
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}
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return cacheRef.current.value;
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} |