01-ReverseString | 02-BracketChecker | 03-SubstringCount | 04-UpCaseLowerCase | 05-nbsp | 06-ExtractText | 07-ParseURL | 08-BBCode | 09-ExtractEmail | 10-Palindrome | 11-StringFormat | 12-Templates

// 09. Write a function for extracting all email addresses from given text. All substrings that match the format <identifier>@<host>…<domain>
should be recognized as emails. Return the emails as array of strings.