48 lines
1.8 KiB
Markdown
48 lines
1.8 KiB
Markdown
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---
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id: 587d7fb4367417b2b2512c00
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title: Expand Your Project with External Packages from npm
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localeTitle: 从npm扩展您的项目与外部包
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challengeType: 2
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---
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## Description
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<section id='description'> <code>0</code>使用包管理器的一个最大原因是它们强大的依赖关系管理。 npm无需手动确保在新计算机上设置项目时获得所有依赖项，npm会自动为您安装所有内容。但是，npm怎么能确切地知道你的项目需要什么呢？遇到package.json的依赖项部分。 <code>0</code>在dependencies-section中，使用以下格式存储项目所需的包：
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<code>"dependencies": {</code>
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<code>"package-name": "version",</code>
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<code>"express": "4.14.0"</code>
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<code>}</code> <code>0</code>指令<code>0</code>将软件包时刻的2.14.0版本添加到package.json的依赖项字段中
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Moment是一个方便的库，用于处理时间和日期。
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</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: '“依赖”应该包括“时刻”'
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testString: 'getUserInput => $.get(getUserInput(''url'') + ''/_api/package.json'').then(data => { var packJson = JSON.parse(data); assert.property(packJson.dependencies, ''moment'', ''"dependencies" does not include "moment"''); }, xhr => { throw new Error(xhr.responseText); })'
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- text: '“时刻”版本应为“2.14.0”'
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testString: 'getUserInput => $.get(getUserInput(''url'') + ''/_api/package.json'').then(data => { var packJson = JSON.parse(data); assert.match(packJson.dependencies.moment, /^[\^\~]?2\.14\.0/, ''Wrong version of "moment" installed. It should be 2.14.0''); }, xhr => { throw new Error(xhr.responseText); })'
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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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</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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