Javascript需要修复代码

这是我的密码

function howManySundays(num,startDay){
  let Days = ["Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"];
  for(let i = 0 ; i < num ;i++){
    var value = [];
    value.push(Days[i%7])
    console.log(value)
  }
}
howManySundays(9,"Sunday");

如何在数组中找到重复项？

这对您有帮助吗

function howManySundays(num,startDay){
  let Days = ["Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"];
  let i = 0;
  while (num > 0) {
    console.log(i, Days[i])
    i++;
    if(i == 7) i = 0;
    num--;
  }
}
howManySundays(9,"Sunday")

---

删除

if

和日志

i，天[i%7]

。看看它是怎么工作的。还有一个问题，如果一天又一天重复，我怎么能笑呢？？？如果

num

大于7，显然有重复的天数…顺便说一下，数组的索引从0开始。数组的最后一个索引是6。如果您想检查某些内容，请选中

i>6

；-）不，不，我想知道“星期一”重复了多少次

function howManySundays(num,startDay){
  let Days = ["Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"];
  let i = 0;
  while (num > 0) {
    console.log(i, Days[i])
    i++;
    if(i == 7) i = 0;
    num--;
  }
}
howManySundays(9,"Sunday")