Aim of the puzzle: Use the
-- operators to change the value of a variable.
Walk through of solution: On the first line, the
y variable is defined with the value 5. The next line increments (adds 1 to) the
y variable. You can see the results printed by the next line.
Now, tap on the
x on the next line all by itself. Tap the
-- button to decrement (subtract 1 from) the
y variable. When you run the code now you will see that the value of
x went back down by 1.
Sample code solution:
(Tap below to reveal)
let y = 5; y++; print('y is ' + y); y--; print('y is now ' + y);
let), Increment (
++), Decrement (