Is there a shorter notation for identity function (fun x - x) in F#?

Question

Is there a shorter notation for identity function (fun x -> x), other then defining your own? Writing ``` Seq.countBy (fun x -> x) ``` looks so wordy.

Accepted Answer

There is a short version `id` which is equal to `fun x -> x`

Also, for your case you can just do `Seq.sort`

Is there a shorter notation for identity function (fun x -> x) in F#?

Solution

Problem