> Now, new files are fetched one and only once per device and the page weight of a particular JS file becomes practically irrelevant.
It's not just download speed -- it's the parsing and execution of the script that takes CPU and memory. 115KB of JS is much heavier than e.g. 115KB of JPEG.
It's not just download speed -- it's the parsing and execution of the script that takes CPU and memory. 115KB of JS is much heavier than e.g. 115KB of JPEG.