JSFiddle - React, Tailwind, and code Playground

by Nic Fontaine

JavaScript

let arr = [
{ a: 3},
{ a: 2},
{ b: "foo"},
{ a: 1}
];
const max = arr.reduce((p, c) => {
	return p.a > c.a ? p : c;
});
const mathMax = Math.max(...arr.map(o => {
	if (typeof o.a !== 'undefined') {
		return o.a
	}
}), 0);
alert(mathMax);