一个数组先按照某个属性的大小排序，如果大小一样的就按照名称排序

重写数组中的sort()方法

下面先以distance排序，如果相同以name排序

let arr = [
    {distance: 3, name: 'jack'},
    {distance: 1, name: 'tom'},
    {distance: 5, name: 'abole'},
    {distance: 8, name: 'jhon'},
    {distance: 4, name: 'yasa'},
    {distance: 4, name: 'tina'},
    {distance: 4, name: 'bob'}
]
let sortBynum_name = (a, b) => {
    if (a.distance - b.distance === 0) {
        console.log(a, b)
        return a.name.localeCompare(b.name);
    }else {
        return a.distance - b.distance;
    }
}
arr.sort(sortBynum_name);
console.log(arr)

　　打印结果