index.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Student</title>
    <link rel="stylesheet" href="style.css" />
  </head>
  <body>
    <div class="container">
      <table>
        <thead style="border: 1px solid black;">
          <tr cols-span=>
            <td colspan="4"><strong>Students Result Board</strong></td>
          </tr>
          <tr>
            <th><i>StudentName</i></th>
            <th><i>RollNumber</i></th>
            <th><i>TotalMarks</i></th>
            <th><i>Status</i></th>
          </tr>
        </thead>
        <tbody id="table-body">

        </tbody>
      </table>
    </div>
    <script>
      var students = [
        {
          name: "rajiv",
          marks: {
            Maths: 18,
            English: 21,
            Science: 45,
          },
          rollNumber: "KV2017-5A2",
        },
        {
          name: "abhishek",
          marks: {
            Maths: 43,
            English: 30,
            Science: 37,
          },
          rollNumber: "KV2017-5A1",
        },
        {
          name: "zoya",
          marks: {
            Maths: 42,
            English: 31,
            Science: 50,
          },
          rollNumber: "KV2017-5A3",
        },
      ];

      // sorting arrays in object according to names in alphabetical order;
      students.sort((a,b)=>{
          let fa = a.name.toLowerCase(), fb=b.name.toLowerCase();
          
          if(fa<fb){
              return -1;
          }
          if(fa<fb){
              return 1;
          }
          return 0;
      })

      var container = document.querySelector("#container");
      var tbody = document.querySelector("#table-body");
      var maximumMarks = 50;
      var minimumMarks = 20
      var status = ''
      var row = document.querySelector('.row')
      
      students.forEach((student)=>{


        //Captitalized the first letter of Name and sorted.
        var studentsNames = student.name.charAt(0).toUpperCase()+ student.name.slice(1);
        //Status of students
        if(student.marks.English <= minimumMarks || student.marks.Maths <= minimumMarks || student.marks.Science<=minimumMarks){
            status = "Failed";
        }else if (student.marks.English >= maximumMarks || student.marks.Maths >= maximumMarks || student.marks.Science >= maximumMarks) {
            status = "Topper"
        } else {
            status = "Passed"
        }
        var tr = `<tr class = "row">
                    <td>${studentsNames}</td>
                    <td>${student.rollNumber}</td>
                    <td>${student.marks.English + student.marks.Maths+student.marks.Science}</td>
                    <td>${status}</td>
            </tr>`
        tbody.innerHTML += tr;
      });
      var setColor = this.tbody.children;
        setColor[1].setAttribute("style","color:red;")
        setColor[2].setAttribute("style","color:green;");
        
    </script>
  </body>
</html>
 