Expirementing with JavaScript

function sum(a, b) {
    return a + b;
}

console.log(sum(2, 11))
13
var x;
x = 5;

function multiply(x, b) {
    return x * b;
}

console.log(multiply(x, 10));
50

Making a Table and experimenting with logIt

function logItType(output) {
    console.log(typeof output, ";", output);
}
console.log("")
logItType("hello"); 
logItType(2022);    
logItType([1, 2, 3]);
string ; hello
number ; 2022
object ; [ 1, 2, 3 ]
function Person(name, ghID, teamrole) {
    this.name = name;
    this.ghID = ghID;
    this.teamrole = teamrole;
    this.role = "";
}

// define a setter for role in Person data
Person.prototype.setRole = function(role) {
    this.role = role;
}

// define a JSON conversion "method" associated with Person
Person.prototype.toJSON = function() {
    const obj = {name: this.name, ghID: this.ghID, teamrole: this.teamrole, role: this.role};
    const json = JSON.stringify(obj);
    return json;
}

// make a new Person and assign to variable teacher
var teacher = new Person("Mr M", "jm1021", "Grader");  // object type is easy to work with in JavaScript
logItType(teacher);  // before role
logItType(teacher.toJSON());  // ok to do this even though role is not yet defined

// output of Object and JSON/string associated with Teacher
teacher.setRole("Teacher");   // set the role
logItType(teacher); 
logItType(teacher.toJSON());
object ; Person { name: 'Mr M', ghID: 'jm1021', teamrole: 'Grader', role: '' }
string ; {"name":"Mr M","ghID":"jm1021","teamrole":"Grader","role":""}
object ; Person {
  name: 'Mr M',
  ghID: 'jm1021',
  teamrole: 'Grader',
  role: 'Teacher' }
string ; {"name":"Mr M","ghID":"jm1021","teamrole":"Grader","role":"Teacher"}
var students = [ 
    new Person("Luka", "LukaVDB", "DevOps"),
    new Person("Jishnu", "JishnuS420", "Backend Developer"),
    new Person("Edwin", "EdwinKuttappi", "Frontend Developer"),
    new Person("Emaad", "Emaad-Mir", "Scrum Master"),
    
];

// define a classroom and build Classroom objects and json
function Classroom(teacher, students){ // 1 teacher, many student
    // start Classroom with Teacher
    teacher.setRole("Teacher");
    this.teacher = teacher;
    this.classroom = [teacher];
    // add each Student to Classroom
    this.students = students;
    this.students.forEach(student => { student.setRole("Student"); this.classroom.push(student); });
    // build json/string format of Classroom
    this.json = [];
    this.classroom.forEach(person => this.json.push(person.toJSON()));
}

// make a CompSci classroom from formerly defined teacher and students
csp = new Classroom(teacher, students);

// output of Objects and JSON in CompSci classroom
logItType(csp.classroom);  // constructed classroom object
logItType(csp.classroom[0].name);  // abstract 1st objects name
logItType(csp.json[0]);  // show json conversion of 1st object to string
logItType(JSON.parse(csp.json[0]));
object ; [ Person {
    name: 'Mr M',
    ghID: 'jm1021',
    teamrole: 'Grader',
    role: 'Teacher' },
  Person {
    name: 'Luka',
    ghID: 'LukaVDB',
    teamrole: 'DevOps',
    role: 'Student' },
  Person {
    name: 'Jishnu',
    ghID: 'JishnuS420',
    teamrole: 'Backend Developer',
    role: 'Student' },
  Person {
    name: 'Edwin',
    ghID: 'EdwinKuttappi',
    teamrole: 'Frontend Developer',
    role: 'Student' },
  Person {
    name: 'Emaad',
    ghID: 'Emaad-Mir',
    teamrole: 'Scrum Master',
    role: 'Student' } ]
string ; Mr M
string ; {"name":"Mr M","ghID":"jm1021","teamrole":"Grader","role":"Teacher"}
object ; { name: 'Mr M',
  ghID: 'jm1021',
  teamrole: 'Grader',
  role: 'Teacher' }
Classroom.prototype._toHtml = function() {
    // HTML Style is build using inline structure
    var style = (
      "display:inline-block;" +
      "border: 2px solid blue;"
    );
  
    // HTML Body of Table is build as a series of concatenations (+=)
    var body = "";
    // Heading for Array Columns
    body += "<tr>";
    body += "<th>" + "Name" + "</th>";
    body += "<th>" + "GitHub ID" + "</th>";
    body += "<th>" + "Team Role" + "</th>";
    body += "<th>" + "Class Role" + "</th>";
    body += "</tr>";
    // Data of Array, iterate through each row of compsci.classroom 
    for (var row of csp.classroom) {
      // tr for each row, a new line
      body += "<tr>";
      // td for each column of data
      body += "<td>" + row.name + "</td>";
      body += "<td>" + row.ghID + "</td>";
      body += "<td>" + row.teamrole + "</td>";
      body += "<td>" + row.role + "</td>";
      // tr to end line
      body += "<tr>";
    }
  
     // Build and HTML fragment of div, table, table body
    return (
      "<div style='" + style + "'>" +
        "<table>" +
          body +
        "</table>" +
      "</div>"
    );
  
  };
  
  // IJavaScript HTML processor receive parameter of defined HTML fragment
  $$.html(csp._toHtml());
</table></div> </div> </div> </div> </div> </div>

Final Result

</div>
Name GitHub ID Team Role Class Role
Mr M jm1021 Grader Teacher
Luka LukaVDB DevOps Student
Jishnu JishnuS420 Backend Developer Student
Edwin EdwinKuttappi Frontend Developer Student
Emaad Emaad-Mir Scrum Master Student