'use strict'; const { performance } = require('node:perf_hooks'); const { renderProducts } = require('./products'); const products = Array.from({ length: 1000 }, (_, id) => ({ id, name: `Product ${id}`, sales: (id * 7919) % 10000, })); const start = performance.now(); const output = renderProducts(products); const elapsed = performance.now() - start; console.log(JSON.stringify({ products: products.length, bytes: output.length, elapsedMs: elapsed }));