var: Useful when you want the convenience of type inference with the safety of a fixed type.dynamic: Useful for more flexible and dynamic scenarios where the type can vary during runtime.
| Type inference |
Yes, type is inferred at compile time based on the assigned value. |
No, type is determined at runtime. |
| Type safety |
Strongly typed after initial assignment. |
Weakly typed, can change type during runtime. |
| Use case |
When the type is known or can be inferred, but you want to avoid specifying it explicitly. |
When the type is not known at compile time, or when you want to allow for type changes. |
| Example (initial assignment) |
var name = "Alice"; // Inferred as String |
dynamic name = "Alice"; // Treated as dynamic |
| Example (changing type) |
name = 42; // Error: Type mismatch |
name = 42; // Allowed, type changed to int |
| Compile-time checks |
Yes, type is checked at compile time. |
No, type is not checked at compile time. |
| Runtime flexibility |
No, type cannot change after the initial assignment. |
Yes, type can change at runtime. |