Create 1-ExOhImplement a function with the following signature: ExOh(str)  str is of type string.  The function should return true if there is an equal number of x's and o's in str. It should return false otherwise.  Things to know:  Only these two letters will be entered in the string, no punctuation or numbers. You don't have to check for valid input. You can use any language you know. Examples:  ExOh('xoxoox') # true ExOh('oooxoo') # false