TypeScript: Catching Bugs Before They Run
JavaScript with types, explained without the jargon. Annotations, interfaces, unions, optional values, and how strict null checks eliminate the single most common runtime crash.
JavaScript
5 lessons
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Course Curriculum
5 lessons · 1 free preview · ~1.3h total
2
Interfaces: Describing the Shape of Data
3
Unions, Literals and Narrowing
4
null, undefined and strictNullChecks
5
Typing Real Work: API Responses and Generics
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Course Includes
- 5 structured lessons
- Live coding playground
- Hints when you're stuck
- Automatic code checking
- Completion certificate
- Included with Pro
- Mobile friendly