REgEx Problem

[MostafaBouzari]

hi Everyone

I am trying to get first 4 digits  with this 

\[\d+

but it works sometimes and returns nulls 

[06494-ghfgjfgj dfhdfh456-435-345-45-SUR] drhth rtz 67 (fgh 956005 zd)
[3495-GTHGH-GTJ-BLOO-RUS] SGHPin fn dtzh (RAL 456 MS)
[02942] transform
[02942] 

and i'm using Regex tool(Parse)

in Regex101 Works but not in alteryx, pls give me some addvice how to check my Expression 

Best Regards

[markcurry]

RegEx Parse should work, but you need ()'s around what you want to extract, so try .... \[(\d{4})

[MarqueeCrew · Accepted solution]

If you're looking for the first 4 digits, please try:

(\[\d{4}).*

Cheers,

Mark