Javascript Regex partial matching

Question

I'm looking for a simple javascript regex that should match strings like

AAAA(abcd,6) 
AAAA(WXYZ,2) 

but should not match strings like

AAAA(abcd,6,9)

I've come up withe the regex

AAAA\(.*,\d\)

but it matches all three of above.

Any help is much appreciated!

Thanks in advance!

Answer 1

var regex = /AAAA\([a-z]*,\d\)/i;

regex.test("AAAA(abcd,6)") => true;

regex.test("AAAA(WXYZ,2)") => true;

regex.test("AAAA(abcd,6,9)") => false;

Answer 2

That's because .* will match anything including ,6 Replace . with [^,] (any char but comma)

AAAA\([^,]*,\d\)

Answer 3

Depending on exactly what you want to match you could use something like

A{4}\([a-zA-Z]{4},\d\)

• A{4} matches the character A exactly 4 times.
• \( matches the character (
• [a-zA-Z]{4} matches any lower or upper case character from a to z exactly 4 times.
• , matches the character ,
• \d matches a digit.
• \) matches the character )

You could of course modify it to suit your needs, I recommend testing for instance at regex101 since it gives you instant feedback when you enter a regular expression.