关于js星期日星期二这种乱的顺怎么排序？

Question

const arr = [{
    week: "星期日",
    en: "sunday"
},{
    week: "星期六",
    en: "saturday"
},{
    week: "星期二",
    en: "tuesday"
},{
    week: "星期五",
    en: "friday"
},{
    week: "星期四",
    en: "thursday"
},{
    week: "星期三",
    en: "wednesday"
},{
    week: "星期一",
    en: "monday"
}]

请问下怎么按照星期一星期二---星期日排序？

Answer 1

const sortByWeekday = (fst, snd) => {
  const d2n = {
    '星期一': 0,
    '星期二': 1,
    '星期三': 2,
    '星期四': 3,
    '星期五': 4,
    '星期六': 5,
    '星期天': 6,
    '星期日': 6
  }
  return d2n[fst.week] - d2n[snd.week]
}

arr.sort(sortByWeekday)

console.log(arr)