Regex Tester & Validator

This regular expression matches strings that start with the letter 'a', followed by one or more 'b's, and ending with one or more characters from the set including 'e', 'E', and any digit from 0 to 9. It is often used in exercises or tutorials for practicing basic character classes, quantifiers, and specific character matching. The global and multiline flags ensure it finds all non-overlapping matches across multiple lines.