code: function unquote(str) {
  		var ch = str.charAt(0);
  		if (ch == '"' || ch == "'") {
  			str = str.substr(1);
  			var last = str.charAt(str.length - 1);
  			if (last === ch) {
  				str = str.substr(0, str.length - 1);
  			}
  		}
  
  		return str;
  	}
docs: Removes opening and closing quotes from given string
  @param  {String} str
  @return {String}