measuring node.js function performance - 08-23-21
How fast is that new function?
import { xx } from 'xx';
+import { performance } from 'perf_hooks';
@@ -160,7 +161,10 @@ const userSessionMiddleware = async (req: XRequest, res: ExpressResponse, ne
+ var t0 = performance.now();
req.isBot = headersIndicateBot(req.headers);
+ var t1 = performance.now();
+ console.log('Took', (t1 - t0).toFixed(4), 'milliseconds to calculate is bot');
source: https://www.sitepoint.com/measuring-javascript-functions-performance/