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Dart Academy · Lesson

Type Inference vs Explicit Types

When to annotate and when to let Dart decide.

Two Ways to Declare

You can write the type yourself or let Dart guess it. Both produce the same strongly typed variable underneath.

Explicit Types Spell It Out

An explicit declaration names the type up front. It is clear and self-documenting for anyone reading your code.

int total = 42;

All lessons in this course

  1. var, final, and const Explained
  2. The Core Types: int, double, String, bool
  3. Type Inference vs Explicit Types
  4. The dynamic and Object Types
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