JSFiddle - React, Tailwind, and code Playground

JavaScript

var arr = [
    { title: 'A', order: 0},
    { title: 'B', order: 9},
    { title: 'C', order: 2}
];

arr.sort(function(a, b) {
    return a.order - b.order;
});

for (i in arr) {
    alert(arr[i].title + ': ' + arr[i].order);
}