I'd love to see a video of someone developing via the REPL that somehow let me "get it". I've never written code for which I've found the REPL that useful so e

I'd love to see a video of someone developing via the REPL that somehow let me "get it". I've never written code for which I've found the REPL that useful so either my domain is not conducive to REPL usage or I need a good tutorial or example to see what I missing and how to change my approach. Any suggested videos or articles? though i suspect a video would be better for this type of thing