Suppose, we have an array of objects that contains information about marks of some students in a test −
const students = [
{ name: 'Andy', total: 40 },
{ name: 'Seric', total: 50 },
{ name: 'Stephen', total: 85 },
{ name: 'David', total: 30 },
{ name: 'Phil', total: 40 },
{ name: 'Eric', total: 82 },
{ name: 'Cameron', total: 30 },
{ name: 'Geoff', total: 30 }
];We are required to write a JavaScript function that takes in one such array and returns a object with the name and total of the student that have highest value for total.
Therefore, for the above array, the output should be −
{ name: 'Stephen', total: 85 } Example
Following is the code −
const students = [
{ name: 'Andy', total: 40 },
{ name: 'Seric', total: 50 },
{ name: 'Stephen', total: 85 },
{ name: 'David', total: 30 },
{ name: 'Phil', total: 40 },
{ name: 'Eric', total: 82 },
{ name: 'Cameron', total: 30 },
{ name: 'Geoff', total: 30 }
];
const pickHighest = arr => {
const res = {
name: '',
total: -Infinity
};
arr.forEach(el => {
const { name, total } = el;
if(total > res.total){
res.name = name;
res.total = total;
};
});
return res;
};
console.log(pickHighest(students));Output
This will produce the following output on console −
{ name: 'Stephen', total: 85 }