This is how I code, exploratory code as unit tests .... > Alternatively one can write exploratory code as unit tests and run them inside an IDE. When the explo

This is how I code, exploratory code as unit tests .... > Alternatively one can write exploratory code as unit tests and run them inside an IDE. When the exploration is done, three quarters of the tedious cleanup effort is already done. There are already unit tests. There are already APIs exercised by the unit tests. The code is in much better shape.