FCC Regular Expressions (+ sign)

Match a character (or group of characters) that appears one or more times in a row. This means it occurs at least once, and may be repeated.

 For example, /a+/g would find one match in "abc" and return ["a"]. Because of the +, it would also find a single match in "aabc" and return ["aa"].

 If it were instead checking the string "abab", it would find two matches and return ["a", "a"] because the a characters are not in a row - there is a b between them. 

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