74 lines
3.0 KiB
Markdown
74 lines
3.0 KiB
Markdown
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---
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title: Date manipulation
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id: 5966c21cf732a95f1b67dd28
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challengeType: 5
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videoUrl: ''
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localeTitle: 日期操纵
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---
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## Description
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<section id="description">任务： <p>给定EST中的日期字符串，将给定日期输出为字符串，并添加12小时。 </p><p>时区应该保留。 </p><p>示例输入： </p><p> <code>"March 7 2009 7:30pm EST"</code> </p> <p>输出示例： </p><p> <code>"March 8 2009 7:30am EST"</code> </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: <code>add12Hours</code>是一个功能。
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testString: 'assert(typeof add12Hours === "function", "<code>add12Hours</code> is a function.");'
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- text: <code>add12Hours(dateString)</code>应该返回一个字符串。
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testString: 'assert(typeof add12Hours(tests[0]) === "string", "<code>add12Hours(dateString)</code> should return a string.");'
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- text: '<code>add12Hours("" + tests[0] + "")</code>应该返回<code>"" + answers[0] + ""</code>'
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testString: 'assert(add12Hours(tests[0]) === answers[0], "<code>add12Hours("" + tests[0] + "")</code> should return <code>"" + answers[0] + ""</code>");'
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- text: '汉德尔应该改变一天。 <code>add12Hours("" + tests[1] + "")</code>应返回<code>"" + answers[1] + ""</code>'
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testString: 'assert(add12Hours(tests[1]) === answers[1], "Should handel day change. <code>add12Hours("" + tests[1] + "")</code> should return <code>"" + answers[1] + ""</code>");'
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- text: '汉德尔月份应该在闰年中发生变化。 <code>add12Hours("" + tests[2] + "")</code>应返回<code>"" + answers[2] + ""</code>'
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testString: 'assert(add12Hours(tests[2]) === answers[2], "Should handel month change in a leap years. <code>add12Hours("" + tests[2] + "")</code> should return <code>"" + answers[2] + ""</code>");'
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- text: '应该在一个共同的年份改变汉德尔月份。 <code>add12Hours("" + tests[3] + "")</code>应该返回<code>"" + answers[3] + ""</code>'
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testString: 'assert(add12Hours(tests[3]) === answers[3], "Should handel month change in a common years. <code>add12Hours("" + tests[3] + "")</code> should return <code>"" + answers[3] + ""</code>");'
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- text: '汉德尔应该改变一年。 <code>add12Hours("" + tests[4] + "")</code>应该返回<code>"" + answers[4] + ""</code>'
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testString: 'assert(add12Hours(tests[4]) === answers[4], "Should handel year change. <code>add12Hours("" + tests[4] + "")</code> should return <code>"" + answers[4] + ""</code>");'
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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 add12Hours (dateString) {
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// Good luck!
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return true;
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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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