Simultaneous assignment in Go

Question

I'm learning Go and can't understand one thing, why creators of this language do support simultaneous assignment? It is very easy to make mistakes like a, b = a, b and not a, b = b, a, as I would want, thanks in advance for any good explanations.

Answer 1

It is very easy to make mistakes like a, b = a, b and not a, b = b, a,

If simultaneous assignment were not available then you would have to do something else instead. An alternative approach might look something like this:

tmp = a
a = b
b = tmp

That's much easier to get wrong.

Answer 2

How else would you get access to the second, third, fourth, … return value of a function?