The match function matches the string value expression1 with the value of expression2 . The value of expression2 is a regular expression. If the match function returns a true value, you can use the result function to return the substring of expression1 that matched the regular expression. Matches any single character.
Class is one or more single characters, a range of characters a-b , or a combination.
Class is one or more single characters, a range of characters a-b , or a combination. Matches a phone number in phone .