Use Streams to improve memory usage

Let&rsquo;s say you&rsquo;re writing a Node JS script to clean up some log files. Maybe it’s part of an internal tool. You want to read each line, remove the timestamp, and save the cleaned file somewhere else. Easy, right? &#xA; So you write, &#xA; const fs = require ( 'fs' );&#xA; &#xA; const data = fs . readFileSync ( './logs/2025-04-23.log' , 'utf8' );&#xA; &#xA; const cleaned = data &#xA; .…