F# In Visual Studio

Question

What is Type Inference in F#?

Sean Stewart · Answer

http://msdn.microsoft.com/en-us/library/dd233180.aspx

Vulpes · Answer

In F# it is unusual to have to declare the type of a variable explicitly. Instead the compiler infers the type of the variable from the type of the expression assigned to it or from the way that is used - a process known as type inference. However once the type of a variable has been inferred it can't be changed. F# is therefore strongly rather than weakly typed.