Integer Extraction function returning Expression.Error Message

[Anonymous]

Through some research, I found this formula to extract numbers only to use in my queries. Since it is used often, I want to write a function from it. However, I can't seem to make it work properly. I'll paste an example of how I use it regularly, and the function I wrote from it which is giving me an error.

This is a snippet that works just fine:

Below is a snippet of the function which is giving me errors:

The error message reads as: Expression.Error: The name '_' wasn't recognized.  Make sure it's spelled correctly.

In addition, I would like to know what causes Expression.Error messages. In this case, I understand that the underscore isn't defined. However, why does it seem to work fine within the image above?

[Anonymous · Accepted solution]

@Anonymous,

Please check the following code.

let intextaction=(AlphaNumeric as  text)=>

let
    Source = Text.Combine(List.RemoveNulls(List.Transform(Text.ToList(""&AlphaNumeric&""),each if Value.Is(Value.FromText(_), type number) then _ else null)))
in
    Source

in
   intextaction

Regards,
Lydia

[Anonymous]

Lydia,

Thank you, this solved the problem. After looking closely, the List.Transform method requires an "each" statement (not sure if that's how you say it "each statement"?).

The AlphaNumeric variable can go in there without having any quotes or ampersands.