JSFiddle - React, Tailwind, and code Playground

JavaScript

var arr = [
  {
     name: "Russia",
     points: 10,
     iihf: 5
  },
    {
     name: "Russia2",
     points: 10,
     iihf: 4
  },
  {
     name: "USA",
     points: 10,
     iihf: 7
  },
  {
     name: "Slovakia",
     points: 8,
     iihf: 6
  }
];

arr.sort(function(a,b) {
    if (a.points == b.points) return a.iihf > b.iihf;    
    return a.points < b.points ? 1 : -1;
});

$('body').html('<pre>'+JSON.stringify(arr, undefined, 2)+'</pre>')