Data Types


Data TypeDescription

Whole numbers

Floating points

Decimal numbers

Decimal numbers with higher precision

Characters and Text

True / False

Saving = Persistence

JSON => JavaScript Object Notation

JSON Data Types

  • Bool

  • Integer & Floating-Point numbers

  • String

  • Array

  • Dictionary <String, Any>

  • Data: Encoded using Strings

  • Date: ???


  • Integers are precise numbers.

  • Double Formats are not as precise as Integers. They have a little bit of inaccuracy.

  • Swift will not allow implicitly calculating Integers and Doubles together for the sake of type safety. So we should choose one of the number formats.



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