Small JS Console Test

js_console_test.js

console.clear();

const t0 = performance.now();
for (let i = 0; i < 1e6; i++); // small workload
const t1 = performance.now();

console.log("Time:", (t1 - t0).toFixed(2), "ms");
console.log("Now:", new Date().toLocaleTimeString());
console.log("Memory:", performance.memory ? performance.memory.usedJSHeapSize : "N/A");
console.log("CPU cores:", navigator.hardwareConcurrency);
console.log("UserAgent:", navigator.userAgent);