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...as they are not 4 letters long. exrex is generating strings starting with ca and followed by any 4 lowercase alphanumeric characters e.g. cabhzp. The example here shows how it should work.
(?=ca)(^[a-z]{4}$) is another example.
The text was updated successfully, but these errors were encountered:
The regex
^(?=ca)([a-z]{4})$
should allow..but not
...as they are not 4 letters long. exrex is generating strings starting with ca and followed by any 4 lowercase alphanumeric characters e.g. cabhzp. The example here shows how it should work.
(?=ca)(^[a-z]{4}$)
is another example.The text was updated successfully, but these errors were encountered: