3 people like it.

Option.either

I think the following function is useful allowing you to do an Option.map + defaultArg in one go (plus defaultArg argument order is a little annoying). Might need a better name.

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module Option =
    let either f x = function
        | None -> x
        | Some v -> f v
module Option

from Microsoft.FSharp.Core
val either : f:('a -> 'b) -> x:'b -> _arg1:'a option -> 'b

Full name: Script.Option.either
val f : ('a -> 'b)
val x : 'b
union case Option.None: Option<'T>
union case Option.Some: Value: 'T -> Option<'T>
val v : 'a
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More information

Link:http://fssnip.net/kl
Posted:10 years ago
Author:David Grenier
Tags: option

This web site is created using F# and Suave web server. It is hosted on Azure and the source code is on GitHub. Contributions are welcome!

The first version of fssnip.net has been created by @tomaspetricek back in 2010. This web site is a new, open-source and contribution-friendly version.