ES6 Find the maximum number of an array of objects

Question

I have the following data

shots = [
    {id: 1, amount: 2},
    {id: 2, amount: 4}
]

Now I\'m trying to get the object which

Answer 1

Sadly enough most answers here do not properly consider all cases

1. The seed value is off
2. The comparison is going between different types

To properly handle negative values, you would have to seed with -Infinity

Secondly compare the largest value of that point with the new value

You'd get the following:

highest = shots.reduce((max, current) => current.amount >= max.amount ? current : max, {amount: -Infinity})

You can test this with

shots = [
    {id: 1, amount: -2},
    {id: 2, amount: -4},
    {id: 3, amount: -4},
    {id: 4, amount: -5},
]
highest = shots.reduce((max, current) => current.amount >= max.amount ? current : max, {amount: -Infinity}) // Returns id 1, amount -2

shots = [
    {id: 1, amount: 2},
    {id: 2, amount: 4},
    {id: 3, amount: 4},
    {id: 4, amount: 5},
]
highest = shots.reduce((max, current) => current.amount > max.amount ? current : max, {amount: -Infinity}) // Returns id 4 amount 5

Note that if the array is empty, you will get a value of {amount: -Infinity} as a result, so you might want to handle the case where shots.length === 0 before the reduce