Antoine Pitrou wrote:
Well, how do languages where assignment is an expression returning the assigned value make their REPLs work? I'm sure they don't inflict that on their users, so it's certainly a solvable problem.
I can't think of any such language that has a REPL offhand, but here's a possible solution:
x := expr # doesn't print anything (x := expr) # prints the result
I.e. special-case a stand-alone assignment, but allow overriding that with parens if needed.