在Typescript或Javascript中按数字排序对象键，然后按字母排序

const obj = {
  2: "two",
  1: "one",
  3: "three",
  b: "beta",
  a: "alpha",
  c: "gamma"
};

const sortedKeys = Object.keys(obj)
  .sort((a, b) => {
    if (isNaN(Number(a)) || isNaN(Number(b))) {
      return a.localeCompare(b);
    } else {
      return Number(a) - Number(b);
    }
  });

const sortedObj = sortedKeys.reduce((acc, key) => {
  acc[key] = obj[key];
  return acc;
}, {});

console.log(sortedObj);