69 lines
1.9 KiB
Markdown
69 lines
1.9 KiB
Markdown
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---
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title: Harshad or Niven series
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id: 595668ca4cfe1af2fb9818d4
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challengeType: 5
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videoUrl: ''
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localeTitle: Harshad或Niven系列
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---
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## Description
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<section id="description"><p> <a href="http://mathworld.wolfram.com/HarshadNumber.html" title="链接：http：//mathworld.wolfram.com/HarshadNumber.html">Harshad</a>或Niven数是正整数≥1，可以被它们的数字之和整除。 </p><p>例如，42是<a href="http://rosettacode.org/wiki/oeis:A005349" title="OEIS：A005349">Harshad数，</a>因为42可以被（4 + 2）整除而没有余数。 </p>假设系列被定义为按递增顺序排列的数字。任务： <p>实现一个函数来生成Harshad序列的连续成员。 </p><p>使用它列出序列的前20个成员并列出第一个大于1000的Harshad数。 </p></section>
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## Instructions
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<section id="instructions">
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: <code>isHarshadOrNiven</code>是一个函数。
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testString: 'assert(typeof isHarshadOrNiven === "function", "<code>isHarshadOrNiven</code> is a function.");'
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- text: '<code>isHarshadOrNiven()</code>应该返回<code>{"firstTwenty": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 18, 20, 21, 24, 27, 30, 36, 40, 42],"firstOver1000": 1002}</code>'
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testString: 'assert.deepEqual(isHarshadOrNiven(), res, "<code>isHarshadOrNiven()</code> should return <code>{"firstTwenty": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 18, 20, 21, 24, 27, 30, 36, 40, 42],"firstOver1000": 1002}</code>");'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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function isHarshadOrNiven () {
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const res = {
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firstTwenty: [],
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firstOver1000: undefined
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};
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// Change after this line
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return res;
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}
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```
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</div>
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### After Test
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<div id='js-teardown'>
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```js
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console.info('after the test');
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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