90 lines
3.2 KiB
Markdown
90 lines
3.2 KiB
Markdown
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---
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title: Align columns
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id: 594810f028c0303b75339ad0
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challengeType: 5
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videoUrl: ''
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localeTitle: 对齐列
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---
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## Description
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<section id="description"><p>给定一个包含许多行的文本文件，其中一行中的字段由单个<code>$</code>字符描述，编写一个程序，通过确保每列中的单词至少由一个空格分隔来对齐每列字段。此外，允许列中的每个单词在其列中左对齐，右对齐或居中对齐。 </p><p>使用以下文本测试您的程序： </p><pre>的$ $多行给出$ A $文本$文件$
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其中$领域内$ A $线$ $
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是$由$ A $单个$ '美元' $字符划定$
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写$ A $程序
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即$对齐$ $场的每个$列$
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由$ $确保该$字美元$ $每
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列$ $是在$最少$一张价值$空间被分隔$ $。
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此外，$允许为$ $ $中的每个字$ $ A $ $列到$为$要么离开$ $
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对齐，右$ $有道理
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或$ $中心内$有道理$ $其列。
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</pre><p>注意： </p>示例输入文本行可以或可以不具有尾随美元字符。所有列应共享相同的对齐方式。为了完成任务，在行尾附近产生的连续空格字符是无关紧要的。输出文本将以纯文本编辑器或基本终端上的单行间隔字体查看。列之间的最小间距应根据文本计算，而不是硬编码。不需要在列之间或列周围添加分隔字符。 </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>formatText</code>是一个函数。
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testString: 'assert(typeof formatText === "function", "<code>formatText</code> is a function.");'
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- text: 具有上述输入和“右”对齐的<code>formatText</code>应产生以下内容：
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testString: 'assert.strictEqual(formatText(testInput, "right"), rightAligned, "<code>formatText</code> with the above input and "right" justification should produce the following: ");'
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- text: 具有上述输入和“左”对齐的<code>formatText</code>应产生以下内容：
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testString: 'assert.strictEqual(formatText(testInput, "left"), leftAligned, "<code>formatText</code> with the above input and "left" justification should produce the following: ");'
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- text: 具有上述输入和“居中”对齐的<code>formatText</code>应产生以下内容：
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testString: 'assert.strictEqual(formatText(testInput, "center"), centerAligned, "<code>formatText</code> with the above input and "center" justification should produce the following: ");'
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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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const testArr = [
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'Given$a$text$file$of$many$lines',
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'where$fields$within$a$line$',
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'are$delineated$by$a$single$"dollar"$character',
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'write$a$program',
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'that$aligns$each$column$of$fields$',
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'by$ensuring$that$words$in$each$',
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'column$are$separated$by$at$least$one$space.',
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'Further,$allow$for$each$word$in$a$column$to$be$either$left$',
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'justified,$right$justified',
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'or$center$justified$within$its$column.'
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];
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function formatText (input, justification) {
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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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