I personally see repl.it less as a replacement for a development environment (c9's aim) and more as a quick way to deploy, run, and illustrate a piece of code.

I personally see repl.it less as a replacement for a development environment (c9's aim) and more as a quick way to deploy, run, and illustrate a piece of code. It is perfect for school assignments, running quick trials, and general explatory-esque learning.