import { bench, describe } from 'vitest'; import { sumBy as sumByToolkit } from 'es-toolkit'; import { sumBy as sumByLodash } from 'lodash'; describe('sumBy', () => { bench('es-toolkit/sumBy', () => { const items = [{ a: 1 }, { a: 2 }, { a: 3 }]; sumByToolkit(items, x => x.a); }); bench('lodash/sumBy', () => { const items = [{ a: 1 }, { a: 2 }, { a: 3 }]; sumByLodash(items, x => x.a); }); });