| Title | 
                
                    Test
                    Find
                    
                    Pattern Title
                 | 
            
            
                | Expression | 
                ^[A][Z](.?)[0-9]{4}$  | 
            
            
                | Description | 
                Expression to test for valid postcodes for azerbaijan  | 
            
            
                | Matches | 
                AZ 1234 | AZ1234  | 
            
            
                | Non-Matches | 
                12 abcd | AB 1234  | 
            
            
                | Author | 
                
                    Rating:
                         
                    Matt Brooke
                 | 
            
            
                | Source | 
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              | Your Rating | 
              
                
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	                Title: error in this regex
	                Name: Link
	                Date: 10/6/2023 7:46:35 PM
	                Comment: 
. is used as a wildcard to match many symbols.
I guess here what you need is a space symbol (E.g., ^[A][Z]( ?)[0-9]{4}$
)