Build, test, and debug regular expressions
Matches any sequence of one or more characters followed by the literal string ' Muffin', capturing the prefix before the space and 'Muffin'. With the 'gm' flags, it can match across multiple lines, treating each line independently. This pattern is useful for extracting muffin types or names from a list where each line contains a descriptor plus ' Muffin', such as 'blueberry Muffin' or 'chocolate chip Muffin'.