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  1. const getLeaderBoard = (students) => {
  2.   // do you magic
  3.   let leaderboard = students
  4.     .filter((stud) => {
  5.       let totalGrade = Object.values(stud.grades).reduce(
  6.         (acc, curr) => acc + curr
  7.       );
  8.       return totalGrade > 85;
  9.     })
  10.     .map((stud) => {
  11.       let totalGrade = Object.values(stud.grades).reduce(
  12.         (acc, curr) => acc + curr
  13.       );
  14.       return { ...stud, totalGrade };
  15.     })
  16.     .sort((a, b) => b.totalGrade - a.totalGrade);
  17.  
  18.   return leaderboard;
  19. };
  20.  
  21. const students = [
  22.   {
  23.     name: "3bkreem",
  24.     class: "3rd",
  25.     grades: {
  26.       math: 25,
  27.       physics: 25,
  28.       programming: 25,
  29.       english: 25,
  30.     },
  31.   },
  32.  
  33.   {
  34.     name: "Samer",
  35.     class: "3rd",
  36.     grades: {
  37.       math: 10,
  38.       physics: 15,
  39.       programming: 12,
  40.       english: 19,
  41.     },
  42.   },
  43.  
  44.   {
  45.     name: "Ahmed",
  46.     class: "3rd",
  47.     grades: {
  48.       math: 20,
  49.       physics: 20,
  50.       programming: 20,
  51.       english: 20,
  52.     },
  53.   },
  54.  
  55.   {
  56.     name: "Ali",
  57.     class: "3rd",
  58.     grades: {
  59.       math: 20,
  60.       physics: 25,
  61.       programming: 19,
  62.       english: 22,
  63.     },
  64.   },
  65.  
  66.   {
  67.     name: "Elgoker",
  68.     class: "3rd",
  69.     grades: {
  70.       math: 23,
  71.       physics: 25,
  72.       programming: 19,
  73.       english: 22,
  74.     },
  75.   },
  76. ];
  77.  
  78. console.log(getLeaderBoard(students));
  79.  
Success #stdin #stdout 0.04s 17024KB
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[object Object],[object Object],[object Object]
https://ideone.com/9x1raG
language:
JavaScript (SMonkey 60.2.3)
created:
3 days ago
visibility:
public

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