##### RegExp class

1. Constructors
2. RegExp
3. Properties
4. isCaseSensitive
5. isMultiLine
6. pattern
7. hashCode
8. runtimeType
9. Methods
10. allMatches
11. firstMatch
12. hasMatch
13. stringMatch
14. matchAsPrefix
15. noSuchMethod
16. toString
17. Operators
18. operator ==
19. Static methods
20. escape

# firstMatch method

Match firstMatch (String input)

Searches for the first match of the regular expression in the string `input`. Returns `null` if there is no match.

## Implementation

    Match firstMatch(String input);