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Welcome to the future with 50y old technology. There is an obscure emacs extension, swank js, that runs a nodejs daemon that speaks slime to emacs.

It allows you to work with js the same way you'd work with lisp, evaling lines or buffers into a live nodejs instance.

I use it (in combination with org-babel) to talk to live instances of remote services, to inspect data, experiment, but also as kind of an on-the-fly UI

It allows you to inject js into a browser as well, handy for js dev or even on the fly data scraping/web manipulation. Super useful yet not very well known.

here is a quick elisp code to make it run with livescript

Fri Sep 29 2017 17:10:56 GMT+0200 (CEST), 3 months ago