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F# Unit Type

The unit type is a type that indicates the absence of specific value. The unit type has only a single value which acts as a placeholder when no other value exists.

let function1 x y = x + y               

function1 10 20      // this line results a compiler warning
    
// changing the code to the following, eliminates the warning
let result = function1 10 20

// Use this if you are calling the function and don't want the return value
function1 10 20 |> ignore

Next TopicF# Casting and Conversions

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