Does anyone know what is this code doing and where to enter the code?

[Anonymous]

#"Filtered Rows" = Table.SelectRows(#"Expanded Changed Type", each [Update Date] > Date.From(Date.AddDays(DateTime.LocalNow(), -30)))

(Image 1) 

(Image 2)

My understanding is that: using the update column values more than the local time which is today - 30 days? 

Furthermore, does anyone know input this code aside from advanced editor as shown in image 2. Thanks!

[Anonymous]

Alright, thank you very much. I will test it out on my side. 

[vojtechsima · Accepted solution]

Hi, @Anonymous 
Yeah, the code filter dates that are in the last 30 days.
The same you can do with these steps:

= Table.SelectRows(#"Extracted Text Before Delimiter", each Date.IsInPreviousNDays([Created], 30))