map

Namespace: FsToolkit.ErrorHandling
Function Signature:
('a -> 'b) -> Result<'a option, 'c> -> Result<'b option, 'c>
ResultOption.map is the same as Result.map Option.map.
Example 1
Given the following functions:
getTweet : PostId -> Result<Tweet option, _>
remainingCharacters : Tweet -> int
You can get the number of remaining characters as below:
getTweetByPostId somePostId
|> ResultOption.map remainingCharacters

ResultOption

map2

Last updated Wed Apr 24 2019 13:29:30 GMT+0000 (UTC)