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iOS

Posted by Egor Bedunkevich
Egor Bedunkevich
605 Points

Unary Operators

Hi! I have some issues when it comes to unary operators... I just happen to not understand them, especially this question that came up on the quiz : var totalScore = 10 - 20 ++totalScore

why is the answer equal to -9???

1 Answer

Jhoan Arango
Jhoan Arango
14,575 Points

Hello Egor:

There is nothing wrong with your code, but you are subtracting 10 - 20 which will give you a negative number -10. What you have to do is change it to subtract 20 - 10, and this will give you 10, then if you want to increment, then you use the ++ operator.

var totalScore = 20 - 10 // This will be equal to 10

totalScore++ // will equal to 11

Keep going :) it will get better