Answers for "10.6.1. Function Scope"

10.6.1. Function Scope

/*This function takes a string and returns the result of removing all 
hyphens, -, from the string*/

function removeHyphens(str) {
   let strWithoutHyphens = ''

   for (let i = 0; i < str.length; i++) {
      if (str[i] !== '-') {
         strWithoutHyphens += str[i];
      }
   }

   return strWithoutHyphens;
}

let launchCodePhone = "314-254-0107";
console.log(removeHyphens(launchCodePhone));
console.log(strWithoutHyphens);


//3142540107
/*ReferenceError: strWithoutHyphens is not defined
(rest of error message omitted)*/