30 lines
644 B
JavaScript
30 lines
644 B
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = void 0;
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/**
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* @template T
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* @param fn {(function(): any) | undefined}
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* @returns {function(): T}
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*/
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const memoize = fn => {
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let cache = false;
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/** @type {T} */
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let result;
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return () => {
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if (cache) {
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return result;
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}
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result = /** @type {function(): any} */fn();
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cache = true;
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// Allow to clean up memory for fn
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// and all dependent resources
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// eslint-disable-next-line no-undefined, no-param-reassign
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fn = undefined;
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return result;
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};
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};
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var _default = memoize;
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exports.default = _default;
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