Data Types Course
This course teaches practical data modeling skills, covering primitive and compound types, validation, error handling, and safe practices for money and equality. Build an Employee Helper model, document it, compare languages, and prepare interview explanations.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
The Data Types Course gives you practical skills to design clear, reliable data models and avoid costly beginner mistakes. Learn primitive and compound types, input validation, error handling, and safe handling of money and equality. Practice building an Employee Helper model, writing plain-text documentation, comparing languages, and preparing concise, interview-ready explanations of your data design choices.
Elevify advantages
Develop skills
- Robust data modeling: design small employee schemas with clear, typed fields.
- Type-safe coding: avoid common numeric, string, and equality bugs in real apps.
- Smart collection use: pick optimal lists, maps, sets, and tuples for performance.
- Cross-language typing: map data models across Python, Java, C#, and JavaScript.
- Concise docs: write high-quality type docs, JSON examples, and validation checklists.
Suggested summary
Before starting, you can change the chapters and the workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
Your classes are perfect. I got the one-year package and finally have the chance to follow several topics I'm interested in without having to switch platforms... thank you for everything you do, I've already recommended you to others...

Giulio CarloDigital Marketing Student
I like how the lessons get straight to the point and how I can switch chapters and skip content I don't need.

Mariana FerresPhotography Student
I like the content and the way the videos are presented and transcribed, which speeds up the process!

Luciana AlvarengaNail Design Student
The platform is fast and easy to use. The variety of content and the extra videos really help with learning.

Giulio CarloPrompt Engineering Student
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