You get dynamic redefinition with Wright[1][2] and chrome, and you can plug in Typescript pretty easily. In v2 currently under way, you can use es modules whic

You get dynamic redefinition with Wright[1][2] and chrome, and you can plug in Typescript pretty easily. In v2 currently under way, you can use es modules which gives you a much better experience since you can reload a single file instead of an entire bundle (always sub 100ms update times). [1] https://github.com/porsager/wright https://github.com/porsager/wright [2] http://porsager.com/wright/example.mov http://porsager.com/wright/example.mov