Measure execution time in Node.js

performance.js

const { performance } = require("perf_hooks");

const start1 = performance.now();
JSON.stringify({ emailAddress: "arnaud.renaud@gmail.com" });
const end1 = performance.now();
console.log(
  `Time taken to execute JSON.stringify function is ${end1 - start1}ms.`
);

const start2 = performance.now();
JSON.parse('{"emailAddress": "arnaud.renaud@gmail.com"}');
const end2 = performance.now();
console.log(
  `Time taken to execute JSON.parse function is ${end2 - start2}ms.`
);