Javatpoint Logo
Javatpoint Logo

F# Type Annotation

F# allows type annotation. By using type annotation you can explicitly mention the type of identifier, parameter, return value of a function. You must use: (colon) to apply annotation in F#.

Let's see where and how we can apply type annotation.

  • Type annotation in variable (identifier)
  • Type annotation in function parameter and return type

F# Type Annotation in variable (identifier) Example

Here, we are explicitly mentioning type of variable followed by: (colon).

Output:

10

F# Type Annotation in Function Example

Here, we are using type annotation in parameters and return value.

Output:

30
Next TopicF# Do Bindings




Please Share

facebook twitter google plus pinterest

Learn Latest Tutorials


Preparation


B.Tech / MCA