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---
id: 56533eb9ac21ba0edf2244ae
title: Finding a Remainder in JavaScript
challengeType: 1
videoUrl: ''
localeTitle: 在JavaScript中查找剩余内容
---
## Description
<section id="description"> <dfn>余数</dfn>运算符<code>%</code>给出了两个数的除法的余数。 <strong></strong> <blockquote> 52 = 1因为<br> Math.floor5/2= 2商数 <br> 2 * 2 = 4 <br> 5 - 4 = 1剩余 </blockquote> <strong>用法</strong> <br>在数学中,通过检查数字除以<code>2</code>的余数,可以检查数字是偶数还是奇数。 <blockquote> 172 = 117为奇数 <br> 482 = 048为偶数 </blockquote> <strong>注意</strong> <br> <dfn>余数</dfn>运算符有时被错误地称为“模数”运算符。它与模数非常相似,但在负数下不能正常工作。 </section>
## Instructions
<section id="instructions">使用<dfn>余数</dfn> <code>%</code> )运算符将<code>remainder</code>设置为等于<code>11</code>的余数除以<code>3</code></section>
## Tests
<section id='tests'>
```yml
tests:
- text: 应该初始化变量<code>remainder</code>
testString: assert(/var\s+?remainder/.test(code));
- text: <code>remainder</code>的值应为<code>2</code>
testString: assert(remainder === 2);
- text: 您应该使用<code>%</code>运算符
testString: assert(/\s+?remainder\s*?=\s*?.*%.*;/.test(code));
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='js-seed'>
```js
// Only change code below this line
var remainder;
```
</div>
### After Test
<div id='js-teardown'>
```js
console.info('after the test');
```
</div>
</section>
## Solution
<section id='solution'>
```js
// solution required
```
</section>