provide the comments in each line of the code        let courses = [      {        code: "APC100",        name: "Applied professional communication",        hours: 3,        url: "http:/www.senecacollege.ca"      },      {        code: "IPC144",        name: "Introduction to C programming",        hours: null,        url: "http:/www.senecacollege.ca/ipc"      },      {        code: "ULI101",        name: "Linux and the Internet",        hours: 4,        url: "http:/www.senecacollege.ca/lin"      },      {        code: "IOS110",        name: "Windows Operating System",        hours: 4,        url: "http:/www.senecacollege.ca/ios"      },      {        code: "EAC150",        name: "College English",        hours: 3,        url: null      }    ];        // Remove the last course     let lastCourse = courses.pop();        // Print the last course    console.log("The last course in the array is:");    console.log(`tcode: ${lastCourse.code},`);    console.log(`tname: ${lastCourse.name},`);    console.log(`thours: ${lastCourse.hours}`);        // Create a new course    let BTI225 = {      code: "BTI225",      name: "Web Programming Principles",      hours: 4,      url: "http:/www.senecacollege.ca/web"    };    // Add it to the courses array    courses.push(BTI225);        //Find the total number of hours in all courses    let totalHours = 0;    for(let i = 0; i < courses.length ; i++){      if( courses[i].hours != null){        totalHours += courses[i].hours;      }    }    console.log(`Total hours for all courses: ${totalHours} hours.`);        // Student function constructor    function Student(name, dob, sid, program, gpa){      this.name = name;      this.dob = dob;      this.sid = sid;      this.program = program;      this.gpa = gpa;    }    // To string    Student.prototype.toString = function(){     let result = `Student info for ${this.name}:`;     result += `tDate of Birth: ${this.dob.toLocaleString()},`;     result += `tStudent ID: ${this.sid},`;     result += `tProgram: ${this.program},`;     result += `tGPA: ${this.gpa}`;     return result;     }        // Students array    let students = [];    // Create 4 students and push it to the array    let s1 = new Student("Your Name", new Date(Date.UTC(1997, 9, 15)), "1000", "IFS", 9.9);    students.push(s1);    let s2 = new Student("Name1", new Date(Date.UTC(1998, 4, 20)), "1001", "ABC", 7.5);    students.push(s2);    let s3 = new Student("Name2", new Date(Date.UTC(1996, 11, 29)), "1002", "DEF", 8.6);    students.push(s3);    let s4 = new Student("Name3", new Date(Date.UTC(1999, 1, 1)), "1003", "GHI", 5.9);    students.push(s4);        // Print all the students    for(let i = 0 ; i < students.length ; i++){      console.log(students[i].toString());    }        // Function to find the highest GPA    function highGPA(studentsArray){      let highestGPAStudent = studentsArray[0];      for(let i = 1 ; i < students.length ; i++){        if(highestGPAStudent.gpa < studentsArray[i].gpa){          highestGPAStudent = studentsArray[i];        }      }      return highestGPAStudent;    }        // Find the print the student with highest GPA    let student = highGPA(students);    console.log(student.toString());