map - FsToolkit.ErrorHandling

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 modified 9mo ago

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