Some people bang on about static typing getting in the way of agility
With live/inline static typing checkers in editors (with, eg, VSCode’s LSP system), there’s IMO an obvious boost to “agility” in preventing minor unforced errors/bugs basically before they’re even written. Passing the right arguments to the function? Correctly processed an object or data structure? Function matches the required API? Live type checker will often answer those questions straight away without having to look up or check anything.
With live/inline static typing checkers in editors (with, eg, VSCode’s LSP system), there’s IMO an obvious boost to “agility” in preventing minor unforced errors/bugs basically before they’re even written. Passing the right arguments to the function? Correctly processed an object or data structure? Function matches the required API? Live type checker will often answer those questions straight away without having to look up or check anything.