> 5 = x
Uncaught SyntaxError: invalid assignment left-hand side
debugger eval code:1
> let x = 5
undefined
> x++;
5
> x
6
> x--;
6
> x
5
> //post(increment/decrement)
undefined
> x
5
> --x
4
> // use this on its own line of code
undefined
> x
4
> x += 2
6
> x
6
> x *= 5
30
> x +=1
31
> x
31