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I hear this amazement and fascination with REPL's that people have and I don't understand.
In a REPL, you're given a buffer to enter text into, and it evaluates it as you submit this buffer.
This is fine if you live in an age before graphical editors, but today we have tools with a better REPL-like experience.
In VS Code, I can use extensions to show realtime values next to every line of my program, and indicators of whether a branch/code path was ever hit.
This allows me to use an entire file as a visual REPL with instant feedback.
Using an actual REPL sucks compared to being able to regularly edit a file in your editor and get all of this + more without being handicapped to a terminal buffer.
Notebooks are also a worse experience for the same reason. You need to manually trigger "cells", which return a single value/visualization, or add a bunch of print statements.
https://quokkajs.com/
https://marketplace.visualstudio.com/items?itemName=xirider....
I have never expected my blog post to be in Hacker News. The aim of all of it is to be able to have F#-script-powered plugins in otherwise compiled code. Check out my example here: https://github.com/queil/fsc-host/blob/main/examples/Compile...