76 lines
3.2 KiB
Markdown
76 lines
3.2 KiB
Markdown
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---
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id: 579e2a2c335b9d72dd32e05c
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title: Slice and Splice
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isRequired: true
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isBeta: true
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challengeType: 5
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videoUrl: ''
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localeTitle: 切片和拼接
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---
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## Description
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<section id="description">您将获得两个数组和一个索引。使用数组方法<code>slice</code>和<code>splice</code>按顺序将第一个数组的每个元素复制到第二个数组中。开始在第二个数组的索引<code>n</code>处插入元素。返回结果数组。函数运行后，输入数组应保持不变。如果卡住，请记得使用<a href="http://forum.freecodecamp.org/t/how-to-get-help-when-you-are-stuck/19514" target="_blank">Read-Search-Ask</a> 。编写自己的代码。 </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>frankenSplice([1, 2, 3], [4, 5], 1)</code>应该返回<code>[4, 1, 2, 3, 5]</code> <code>frankenSplice([1, 2, 3], [4, 5], 1)</code> <code>[4, 1, 2, 3, 5]</code> 。'
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testString: 'assert.deepEqual(frankenSplice([1, 2, 3], [4, 5], 1), [4, 1, 2, 3, 5], "<code>frankenSplice([1, 2, 3], [4, 5], 1)</code> should return <code>[4, 1, 2, 3, 5]</code>.");'
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- text: '<code>frankenSplice([1, 2], ["a", "b"], 1)</code>应返回<code>["a", 1, 2, "b"]</code> 。'
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testString: 'assert.deepEqual(frankenSplice(testArr1, testArr2, 1), ["a", 1, 2, "b"], "<code>frankenSplice([1, 2], ["a", "b"], 1)</code> should return <code>["a", 1, 2, "b"]</code>.");'
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- text: '<code>frankenSplice(["claw", "tentacle"], ["head", "shoulders", "knees", "toes"], 2)</code>应该返回<code>["head", "shoulders", "claw", "tentacle", "knees", "toes"]</code> 。'
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testString: 'assert.deepEqual(frankenSplice(["claw", "tentacle"], ["head", "shoulders", "knees", "toes"], 2), ["head", "shoulders", "claw", "tentacle", "knees", "toes"], "<code>frankenSplice(["claw", "tentacle"], ["head", "shoulders", "knees", "toes"], 2)</code> should return <code>["head", "shoulders", "claw", "tentacle", "knees", "toes"]</code>.");'
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- text: 第一个数组中的所有元素都应按原始顺序添加到第二个数组中。
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testString: 'assert.deepEqual(frankenSplice([1, 2, 3, 4], [], 0), [1, 2, 3, 4], "All elements from the first array should be added to the second array in their original order.");'
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- text: 函数运行后，第一个数组应保持不变。
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testString: 'assert(testArr1[0] === 1 && testArr1[1] === 2, "The first array should remain the same after the function runs.");'
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- text: 函数运行后，第二个数组应保持不变。
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testString: 'assert(testArr2[0] === "a" && testArr2[1] === "b", "The second array should remain the same after the function runs.");'
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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 frankenSplice(arr1, arr2, n) {
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// It's alive. It's alive!
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return arr2;
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}
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frankenSplice([1, 2, 3], [4, 5, 6], 1);
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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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