SoccerProject players age average

let ages = Array.from(document.getElementsByTagName("tr")).filter(a => a.id.startsWith("id")).map(a => parseInt(a.childNodes[4].innerHTML));
let avg_age = Math.round((ages.reduce((s, e) => s + e) / ages.length + Number.EPSILON) * 100) / 100;
console.log(avg_age);