34 lines
852 B
JavaScript
34 lines
852 B
JavaScript
function memoize(func, externalStorage) {
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const storage = externalStorage || {};
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// eslint-disable-next-line func-names
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return function () {
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// eslint-disable-next-line prefer-rest-params
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const args = [...arguments];
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if (args in storage) {
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return storage[args];
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}
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const outcome = func.apply(this, args);
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storage[args] = outcome;
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return outcome;
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};
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}
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function memoizeAsync(func, externalStorage) {
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const storage = externalStorage || {};
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// eslint-disable-next-line func-names
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return async function () {
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// eslint-disable-next-line prefer-rest-params
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const args = [...arguments];
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if (args in storage) {
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return storage[args];
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}
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const outcome = await func.apply(this, args);
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storage[args] = outcome;
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return outcome;
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};
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}
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module.exports = {
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memoize,
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memoizeAsync,
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};
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