yes and no. You are correct the REPL provides more interactivity. However the downside is you can break something that used to work while make something else work.
There is no reason you can have a REPL and unit tests in the same. Every change results in running all the tests. (of course most changes are syntax error - just "if foo()" is 7 syntax errors. ) I've seen various attempts of this over the years, but quickly your code becomes more complex than the computer can run while you type and you fall back to running most of the tests after in some way.
There is no reason you can have a REPL and unit tests in the same. Every change results in running all the tests. (of course most changes are syntax error - just "if foo()" is 7 syntax errors. ) I've seen various attempts of this over the years, but quickly your code becomes more complex than the computer can run while you type and you fall back to running most of the tests after in some way.