freeCodeCamp/curriculum/challenges/chinese/10-coding-interview-prep/rosetta-code/day-of-the-week.md

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---
id: 5966f99c45e8976909a85575
title: 一周中的天
challengeType: 5
videoUrl: ''
---
# --description--
<p>一家公司决定每当圣诞节落在星期天他们将给予他们的工人所有额外带薪假期这样在任何公共假期工人将不必在下一周12月25日到1月1日之间工作。 </p><p>任务: </p><p>编写一个开始年份和结束年份的函数并返回12月25日为星期日的所有年份的数组。 </p>
# --hints--
`findXmasSunday`是一个函数。
```js
assert(typeof findXmasSunday === 'function');
```
`findChristmasSunday(2000, 2100)`应该返回一个数组。
```js
assert(typeof findXmasSunday(2000, 2100) === 'object');
```
`findChristmasSunday(2008, 2121`应该回归[1977,1983,1988,1994,2005,2011,2016]
```js
assert.deepEqual(findXmasSunday(1970, 2017), firstSolution);
```
`findChristmasSunday(2008, 2121`应该返回[2011,2016,2022,2033,2039,2044,2050,2061,2067,2072,2078,2089,2095,2101,2107,2112,2118]
```js
assert.deepEqual(findXmasSunday(2008, 2121), secondSolution);
```
# --solutions--