let marks = [ { name: 'student1', mark: 78 },{ name: 'student2', mark: 90 },{ name: 'student3', mark: 69 },{ name: 'student4', mark: 96 },{ name: 'student5', mark: 64 } ]
let marks = [ { name: 'student1', mark: 78 },{ name: 'student2', mark: 90 },{ name: 'student3', mark: 69 },{ name: 'student4', mark: 96 },{ name: 'student5', mark: 64 } ]