David Kruger
8df9031d27
``` ~/go/bin/sourcemapper -output ddb -jsurl https://media.dndbeyond.com/character-app/static/js/main.90aa78c5.js ```
20 lines
666 B
JavaScript
20 lines
666 B
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.useGuaranteedMemo = void 0;
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const react_1 = require("react");
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/** Like react's useMemo but with guarantee that the fn
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* won't be invoked again if deps hasn't change */
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function useGuaranteedMemo(fn, deps) {
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const ref = (0, react_1.useRef)();
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if (!ref.current ||
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deps.length !== ref.current.prevDeps.length ||
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ref.current.prevDeps.map((v, i) => v === deps[i]).indexOf(false) >= 0) {
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ref.current = {
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"v": fn(),
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"prevDeps": [...deps],
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};
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}
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return ref.current.v;
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}
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exports.useGuaranteedMemo = useGuaranteedMemo;
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