Trying to use an else statement to get the search to return a different message...

function print(message) {
  var outputDiv = document.getElementById('output');
  outputDiv.innerHTML = message;
}



function getStudentData(student) {
  var data = '<h2>Student: ' + student.name + '</h2>';
  data += '<p>Track: ' + student.track + '</p>';
  data += '<p>Points: ' + student.points + '</p>';
  data += '<p>Achievements: ' + student.achievements + '</p>';
  return data;
}

/************************************************************
* Searches the an array of students for the provided name
* if the name exists then the index of the array at where
* the name was matched will be returned, otherwise it will
* return negative one.
*----------------------------------------------------------
* @param name A string containing a name
* @return An integer value pertaining the the index of the
* array at which the students name was matched, if no match
* is found then -1 is returned instead
************************************************************/
function search(name) {
  //loop through the students array, when a name is matched
  //return the value at which the name is found
  for(var i = 0, j = students.length; i < j; i++) {
    //We set the student name to lowercase for easier string comparing
    if(students[i].name.toLowerCase() === name.toLowerCase()) {
      alert("Found a name at index " + i);
      return i;
    }
  }
  //If no name is matched however, return -1
  alert("The name specified was not found!");
  return -1;
}

/************************************************************
* This function will prompt the user for a name, if the
* user enters nothing, quit, or a null, then the program
* will quit. Otherwise it will then proceed to run a search
* based on the name, if the search yields a value greater
* or equal to 0, then the program will display the 
* contents of the student found at the student array index 
* matching the value. If the search yields negative 1 then 
* it will let the user know that the student does not exist.
************************************************************/
function runStudentReport() {
  while(true) {
    var studentName = prompt("Enter the name of the student you want to search for, if you want to quit the program at any time, please enter the value quit.");

    //Make a check and see if the name is valid
    if(studentName === null || studentName.toLowerCase() === 'quit' || studentName.toLowerCase() === "") {
      //its invalid or the user quit, let then know then exit
      alert("Looks like you either want to leave or entered nothing! Bye!");
      break;
    }
    else {
      var studentIndex = search(studentName);
      if(studentIndex === -1) {
        print("A student with that name does not exist!");
      }
      else {
        print(getStudentData(students[studentIndex]));
      }
    }
  }
}

runStudentReport()