Returns the element's content as a String.
The parameter, defaultValue, is optional. If a string is passed, as in myXML.getContent('???'), it will be returned if the element has no content.
Examples
Syntax
  
      getContent([defaultValue])
      
         
      
    
Parameters
defaultValue
String: 
value to return if the element has no content.
Returns
String: element's content as a string.
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