2018-10-10 18:03:03 -04:00
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---
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id: bd7993c9c69feddfaeb8bdef
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2020-12-16 00:37:30 -07:00
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title: 使用 JavaScript 数组将多个值存储在一个变量中
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2018-10-10 18:03:03 -04:00
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challengeType: 1
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2020-04-29 18:29:13 +08:00
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videoUrl: 'https://scrimba.com/c/crZQWAm'
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forumTopicId: 18309
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2021-01-13 03:31:00 +01:00
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dashedName: store-multiple-values-in-one-variable-using-javascript-arrays
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2018-10-10 18:03:03 -04:00
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---
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2020-12-16 00:37:30 -07:00
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# --description--
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2018-10-10 18:03:03 -04:00
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2020-12-16 00:37:30 -07:00
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使用`数组`,我们可以在一个地方存储多个数据。
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2018-10-10 18:03:03 -04:00
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2020-12-16 00:37:30 -07:00
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以左方括号`[`开始定义一个数组,以右方括号`]`结束,里面每个元素之间用逗号隔开,例如:
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2018-10-10 18:03:03 -04:00
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2020-12-16 00:37:30 -07:00
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`var sandwich = ["peanut butter", "jelly", "bread"]`.
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2018-10-10 18:03:03 -04:00
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2020-12-16 00:37:30 -07:00
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# --instructions--
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2018-10-10 18:03:03 -04:00
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2020-12-16 00:37:30 -07:00
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创建一个包含`字符串`和`数字`的数组`myArray`。
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2018-10-10 18:03:03 -04:00
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2020-12-16 00:37:30 -07:00
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**提示**
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如果你遇到困难,请参考文本编辑器中的示例代码。
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2018-10-10 18:03:03 -04:00
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2020-12-16 00:37:30 -07:00
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# --hints--
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2018-10-10 18:03:03 -04:00
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2020-12-16 00:37:30 -07:00
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`myArray`应该是一个`数组`。
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2018-10-10 18:03:03 -04:00
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```js
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2020-12-16 00:37:30 -07:00
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assert(typeof myArray == 'object');
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2018-10-10 18:03:03 -04:00
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```
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2020-12-16 00:37:30 -07:00
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`myArray`数组的第一个元素应该是一个`字符串`。
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2018-10-10 18:03:03 -04:00
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2020-12-16 00:37:30 -07:00
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```js
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assert(typeof myArray[0] !== 'undefined' && typeof myArray[0] == 'string');
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```
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2018-10-10 18:03:03 -04:00
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2020-12-16 00:37:30 -07:00
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`myArray`数组的第二个元素应该是一个`数字`。
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2020-04-29 18:29:13 +08:00
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2018-10-10 18:03:03 -04:00
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```js
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2020-12-16 00:37:30 -07:00
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assert(typeof myArray[1] !== 'undefined' && typeof myArray[1] == 'number');
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2018-10-10 18:03:03 -04:00
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```
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2020-04-29 18:29:13 +08:00
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2021-01-13 03:31:00 +01:00
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# --seed--
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## --after-user-code--
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```js
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(function(z){return z;})(myArray);
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```
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## --seed-contents--
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```js
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// Only change code below this line
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var myArray = [];
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```
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2020-12-16 00:37:30 -07:00
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# --solutions--
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2021-01-13 03:31:00 +01:00
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```js
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var myArray = ["The Answer", 42];
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```
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