That's my solution for the last challenge , I did it

var student;
var search;

var students = [
    {
        name: "Mohamed",
        track: "Front End Development",
        achievements: 17,
        points: 850,
    },
      {
        name: "Michel Jordon",
        track: "iOS Development",
        achievements: 12,
        points: 712
    },
      {
        name: "Jhon Stewart",
        track: "Android Development",
        achievements: 14,
        points: 650
    },
      {
        name: "Mohamed",
        track: "PHP Development",
        achievements: 17,
        points: 800
    },
      {
        name: "Izak Benjammen",
        track: "Ruby Development",
        achievements: 7,
        points: 600
    },
      {
        name: "James Braker",
        track: "Design",
        achievements: 15,
        points: 812
    },
]



while (true) {

    search = prompt('Type a Student Name or "quit" to Exit');

    if (search === null || search.toLowerCase() === 'quit'){

        break
    }

   for (var i = 0 ; i < students.length ; i++) {

    var student = students[i]

    if (student.name.toLowerCase() === search.toLowerCase()) {

        document.write('<h1>'+'Student: '+students[i].name+'</h1>');
        document.write('<p>'+'Track : '+students[i].track+'</p>');
        document.write('<p>'+'Achievements : '+students[i].achievements+'</p>');
        document.write('<p>'+'Points : '+students[i].points+'</p>');
     }
   }
}