ort方法接收一個函式作為引數，這裡巢狀一層函式用來接收物件屬性名，其他部分程式碼與正常使用sort方法相同

var arr = [
    {name:'zopp',likeSum:6},
    {name:'gpp',likeSum:6},
    {name:'yjj',likeSum:6}
];

function compare(property){
    return function(a,b){
        var value1 = a[property];
        var value2 = b[property];
        return value1 - value2;
    }
}
console.log(arr.sort(compare('likeSum')))