JSFiddle - React, Tailwind, and code Playground

JavaScript

var users = [
    {
        name:"小明",
        score:60
    },
    {
        name:"小華",
        score:90
    },
    {
        name:"小乖",
        score:99
    },
];

var current_index = 0;
for(var i =1 ; i <users.length;++i){
    if(users[i].score > users[current_index].score){
        current_index = i;
    }
}
alert("最高分為:" + users[current_index].name + ",分數為 "
 + users[current_index].score );