Here is my code for the extended challenge for the JavaScript Loops, Arrays and Objects course.

 // Set Global Variables

let message = '';
let student;
let studentList = [];
let search;
let flag = true;


/** 
* Prints out supplied html to page
* @param {string} message - Content to be printed to the website
*/

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


/** 
* Loop through an array of objects to create student details
* @param {Array,<object>} studentList - An array of student objects
* @returns {String} returns the html markup to be printed to the website
*/

function getStudentReport (studentList) {
    let report ='';
    for(let i = 0; i< studentList.length; i++) {
        report += `<h2>Student: ${studentList[i].name}</h2>`;
        report += `<p>Track: ${studentList[i].track}</p>`;
        report += `<p>Points: ${studentList[i].points}</p>`;
        report += `<p>Achievements: ${studentList[i].achievements}</p>`;
    }
    return report;
}


// While loop to display prompt to search student records

while (flag) {
    search = prompt( 'Search for a student by entering a name. Type quit to exit');

    // If user selects Cancel, or user types quit - exit the loop
    if (search === null || search.toLowerCase() === 'quit') {
        break;
    } 


    // For loop to see if name provided matches a student(s) name
    for (var i = 0; i < students.length; i ++) {
        student = students[i];
            if (student.name === search) {
                studentList.push(student);
            }   
    }

    // If name does not match a student(s) name - Display an alert 
    if (studentList.length === 0) {
        alert(`Sorry, there are no students called ${search}`);
    } 

    /* If matches, send records to the getStudentReport function, 
        print message and set flag to false and break loop 
    */
    else if (studentList.length > 0) {
        message = getStudentReport(studentList);
        print(message);
        flag = false;
    }
}