JSFiddle - React, Tailwind, and code Playground

HTML

<div id="sorted">
</div>

JavaScript

var arr = [
    {name:"Mike", age:17},
    {name:"John", age:21},
    {name:"Sam", age:32},
    {name:"Mark", age:23}
];

function compare(a,b) {
    //if (a.age < b.age)
    //    return -1;
    //if (a.age > b.age)
    //    return 1;
    //return 0;
    return b.age-a.age;
}

arr.sort(compare);

var div = document.getElementById('sorted');
var result = "";
for(var i=0, len=arr.length; i<len; i++)
    result+="<p> name: "+arr[i].name+ " age: "+arr[i].age+"</p><br/>";

div.innerHTML = result;