This document discusses advanced TypeScript concepts beyond the basics, including data types, generics, inheritance, composition vs inheritance, intersection types, union types, string literals, and using TypeScript's type system to clearly express software intent. It is presented by Eric Potter and assumes familiarity with adding types to variables, parameters, classes, and using type definition files and build configuration.

1. TypeScript:
Beyond theBasics
EricPotter
Technical Strategist,
Aptera Software

2. Prerequisites
• Adding types to variables and
parameters
• Creating classes
• Use of Type Definition files
• Configuring the build

3. Data Types

4. “ “A data type defines a
collection of data values and
a set of predefined
operations on those values.”

9. Generics

14. Basic Inheritance

16. “
Inheritance produces “is-a”
relationships.

19. “
Composition > Inheritance

20. IntersectionTypes

25. UnionTypes

31. “ Union Types are most
commonly used to safely
represent potential error
cases.

33. String Literals

36. Conclusion

37. “ Use the TypeScript type
system to clearly express
the intent of the software.

38. “
Thank You.
Let’s Chat Later.
@pottereric HumbleToolsmith.com