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iOS

Posted by Essa Saulat
Essa Saulat
Courses Plus Student 2,399 Points

In the last part "let chairs = width / chairWidth" Why is the answer 3, when it should be 3.33333?

Does Swift round it off?

1 Answer

Gavin Ralston
Gavin Ralston
28,770 Points
Gavin Ralston
Gavin Ralston
28,770 Points

"Conversions between integer and floating-point numeric types must be made explicit"

In other words, if you divide integers, they'll stay integers, so the remainder will be truncated. This behavior is common in many languages.

In order to get a floating point answer, you'd need to make the numbers floats or doubles or, maybe apple came up with their own new terminology like "dotted" or "pointy" or something. The docs will help you there.

Ricardo Hill-Henry
Ricardo Hill-Henry
38,442 Points

Here's a good reference OP https://developer.apple.com/library/ios/documentation/Swift/Conceptual/Swift_Programming_Language/TypeCasting.html

Essa Saulat
Essa Saulat
Courses Plus Student 2,399 Points

Thank you very much! That clears it up :)