map min max js code example

Example 1: javascript array find highest value of array of objects by key

Math.max.apply(Math, array.map(function(o) { return o.y; }))

Example 2: How to find the max id in an array of objects in JavaScript

const shots = [
  {id: 1, amount: 2},
  {id: 2, amount: 4},
  {id: 3, amount: 52},
  {id: 4, amount: 36},
  {id: 5, amount: 13},
  {id: 6, amount: 33}
];

shots.reduce((acc, shot) => acc = acc > shot.amount ? acc : shot.amount, 0);