[filearts]

The editors based on ACE[1] have a vim keybinding mode. For example, you can toggle the keybinding environment in Plunker's settings pane[2].

The reason that you may not see this more often is that implementors of ACE may simply not expose the option.

[1]: http://ace.c9.io

[2]: http://plnkr.co/edit/?p=options

[jnbiche]

Thanks! I'll have to look into it in the ACE-based editors. Since it's Javascript, I should be able to enable it even if the implementer didn't explicitly do so (unless they ripped it out).