I think IDEs and REPLs never went out of style. They just got forgotten about for awhile while the cycle between making updates to code and seeing the results w

I think IDEs and REPLs never went out of style. They just got forgotten about for awhile while the cycle between making updates to code and seeing the results was super fast. There's no need for live components on a simple non-webpacked JS/HTML/CSS webpage. You just reload the page, or have the page reload automatically every second. Now that Node and Webpack take absolutely forever (relatively speaking) to get your JS2020/React/Redux/Bootstrap/SCSS app recompiled after a modification, being able to write the correct thing once and not have to wait a minute to have confidence in it is hugely valuable. Get the REPL time down to a second, and IDEs aren't terribly valuable anymore.