text: /***********************************************************************
  Write a function alternateCase(str) that takes in a word and returns the
  word where the characters alternate between uppercase and lowercase.
  
  Examples:
  
  alternateCase('BOOTCAMPPREP'); // => 'BoOtCaMpPrEp'
  alternateCase('bOotCamPpREP'); // => 'BoOtCaMpPrEp'
  alternateCase('hello'); // => 'HeLlO'
  ***********************************************************************/
  
  function alternateCase(str) {
  
  }
  
  /**************DO NOT MODIFY ANYTHING UNDER THIS  LINE*****************/
  module.exports = alternateCase;
  