Swift version: 5.0
Double data type is the standard Swift way of storing decimal numbers such as 3.1, 3.14159 and 16777216.333921. Whenever you create a variable or constant that holds a number like this, Swift automatically assumes it's a
Double rather than a
Float, because it has a higher precision and therefore less likely to lose valuable accuracy.
Available from iOS 7.0 – learn more in my book
Did this solution work for you? Please pass it on!
Other people are reading…
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.