在LINQPad中，F＃中C＃的.Dump（）方法的等价物是什么？

Question

In LINQPad , what is the equivalent of C#'s .Dump() method in F#?

For example, what is the quickest way to dump the below C# in F# syntax?

var nums = new List<int> { 1, 2, 3, 4, 5 };
nums.Dump();

And

let nums = [1; 2; 3; 4; 5]

Answer 1

This works for me:

let nums = [1; 2; 3; 4; 5]
nums.Dump()

Answer 2

You can also use Dump as a function:

let nums = [1; 2; 3; 4; 5]
Dump nums
nums |> Dump
(* ... *)

Answer 3

Aside from the already given .Dump() method, you should know it is also automatically invoked when you write a collection (and other types) to the console:

let nums = [1; 2; 3; 4; 5]
Console.WriteLine(nums);

will also give you the dump.

Answer 4

This one can be used in the middle of a piped workflow too, because it return his input.

let DumpHelper (caption:string) a =
 a.Dump(caption)
 a