根据两个值按字母顺序对数组中的对象排序

var arr = [
  { name: "John", age: 25 },
  { name: "Alice", age: 30 },
  { name: "Bob", age: 20 }
];

arr.sort(function(a, b) {
  var nameA = a.name.toUpperCase(); // 将名字转换为大写进行比较
  var nameB = b.name.toUpperCase();
  
  if (nameA < nameB) {
    return -1;
  }
  if (nameA > nameB) {
    return 1;
  }
  
  // 如果名字相同，则按照年龄进行排序
  return a.age - b.age;
});

console.log(arr);

[
  { name: "Alice", age: 30 },
  { name: "Bob", age: 20 },
  { name: "John", age: 25 }
]