Yes, but JS is faster than Ruby and Python, and indeed most of your go-to scripting options.
Re:How F5Bot Slurps All of Reddit
by anonytrary on Tuesday July 31, 2018 @02:24AM
(#17650974)
JS has the advantage of being the thing that makes your website run faster on the screen of the user whose clicks are earning you ad dollars. JS is in a good spot.
That same benchmark shows JS code that’s 6x faster than PHP.