Find item with max ID from array of objects

Question

I have an array like this:

const persons = [
  {id: 28, name: 'John'},
  {id: 43, name: 'Doe'},
  {id: 15, name: 'Marcelina'},
  {id: 36, name: 'Frank'},
  {id: 81, name: 'Philips'},
  {id: 57, name: 'Brad'},
];

And expecting result like this:

{id: 81, name: 'Philips'}

How to achieve this with ES6 syntax?

This might help: https://stackoverflow.com/questions/48786855/es6-find-the-maximum-number-of-an-array-of-objects — JoshG, Jun 22 '20 at 09:36

score 2 · Answer 1 · answered Jun 22 '20 at 09:38

const persons = [
  {id: 28, name: 'John'},
  {id: 43, name: 'Doe'},
  {id: 15, name: 'Marcelina'},
  {id: 36, name: 'Frank'},
  {id: 81, name: 'Philips'},
  {id: 57, name: 'Brad'},
];

const maximum = persons.reduce(function (prev, curr) {
  return prev.id > curr.id ? prev : curr
})
  
console.log(maximum)

score 0 · Answer 2 · answered Jun 22 '20 at 09:50

persons = [
  {id: 28, name: 'John'},
  {id: 43, name: 'Doe'},
  {id: 15, name: 'Marcelina'},
  {id: 36, name: 'Frank'},
  {id: 81, name: 'Philips'},
  {id: 57, name: 'Brad'},
];

console.log(
  persons.reduce(
    (maxAcc,cur)=>((maxAcc.id>cur.id)?(maxAcc):(cur))
  )
);

Find item with max ID from array of objects

2 Answers2