65 lines
1.4 KiB
Markdown
65 lines
1.4 KiB
Markdown
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---
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title: Vector cross product
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id: 594810f028c0303b75339ad2
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challengeType: 5
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videoUrl: ''
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localeTitle: 矢量交叉产品
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---
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## Description
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<section id="description">矢量被定义为具有三个维度，由三个数字的有序集合表示：（X，Y，Z）。 <p>任务： </p><pre> <code>Write a function that takes two vectors (arrays) as input and computes their cross product.</code> </pre><p>您的函数应在无效输入（即不同长度的向量）上返回<code>null</code> 。 </p><p></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: dotProduct必须是一个函数
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testString: 'assert.equal(typeof crossProduct, "function", "dotProduct must be a function");'
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- text: dotProduct（）必须返回null
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testString: 'assert.equal(crossProduct(), null, "dotProduct() must return null");'
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- text: 'crossProduct（[1,2,3]，[4,5,6]）必须返回[-3,6，-3]。'
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testString: 'assert.deepEqual(res12, exp12, "crossProduct([1, 2, 3], [4, 5, 6]) must return [-3, 6, -3].");'
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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 crossProduct() {
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// Good luck!
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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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