I would take out the IDE stuff today. They can handle dynamic languages really well now. On the front-end, types are just too cumbersome, especially if you’re

I would take out the IDE stuff today. They can handle dynamic languages really well now. On the front-end, types are just too cumbersome, especially if you’re doing Agile and demos are part of the workflow. So many changes, it’s a total drag to rewrite. On the backend, changes aren’t usually so drastic, so the type tax isn’t so bad. And yeah, there is a cost to using types. This war was fought long ago. In the end, as always the answer is: “it depends”