For some time, I used Jay, but it seems that the project is no longer maintained, though it still works.
You can install it through NPM.
$ npm install -g jay-repl $ jay
There is a community and a pro edition available. If you want to install packages, you need to switch to the pro plan.
One excellent feature of RunJS is that you can install npm packages.
command-i, search for the package, and install it with a click of a button.
You can then import it like you usually would.
import without from 'lodash/without' without([1, 2, 3], 2) // [ 1, 3 ]
There are many more browser-based solutions. What are you using? Let me know via Twitter.
Posted on CuteMachine.