Isn't it annoying to write a little server.js file everytime you're fooling around with HTML and JS?

Well you can just:

npm install static-http

And navigate to your folder with cd and then:

$ cd path-to/my-awesome-folder
$ ls
> awesome.html code.js style.css
$ static-http `pwd`
> [*] Static server running on port 3600, serving files from: path-to/my-awesome-folder

Now that you've got a static HTTP server running on port 3600 (default), point your browser at http://localhost:3600/awesome.html and voilà!

If you want to specify another port:

$ static-http `pwd` --port 1234

Or:

$ static-http `pwd` -p 1234

If there's something running on the port you chose, it will let you know.

[ERROR] The specified port 1234 is already in use.
Please, choose another port.