Type Inference
TypeScript can automatically infer types based on values, so you don't always need explicit annotations.
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LearnStep 1 of 2
Automatic Type Detection
Learning Objectives
- •Understand type inference
- •Know when to annotate
- •Use contextual typing
Lesson Outline
LearnStep 1/2
Automatic Type Detection
typescript
When to Add Annotations
- Function parameters (always recommended)
- Function return types (for documentation)
- Variables initialized later
- When inference isn't what you want
typescript