98 lines
4.7 KiB
Markdown
98 lines
4.7 KiB
Markdown
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---
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title: Balanced brackets
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id: 594dc6c729e5700999302b45
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challengeType: 5
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videoUrl: ''
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localeTitle: 平衡括号
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---
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## Description
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<section id="description"><p>确定生成的括号字符串是否平衡;也就是说，它是否完全由成对的开/关括号（按此顺序）组成，其中没有一个错误嵌套。 </p>例子： <p class="rosetta__paragraph"> （空）是的</p><p class="rosetta__paragraph"> <code>[]</code>是的</p><p class="rosetta__paragraph"> <code>][</code>假</p><p class="rosetta__paragraph"> <code>[][]</code>是的</p><p class="rosetta__paragraph"> <code>][][</code>假</p><p class="rosetta__paragraph"> <code>[]][[]</code> false </p><p class="rosetta__paragraph"> <code>[[[[]]]]</code>是的</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>isBalanced</code>是一个函数。
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testString: 'assert(typeof isBalanced === "function", "<code>isBalanced</code> is a function.");'
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- text: '<code>isBalanced("[]")</code>应该返回true。'
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testString: 'assert(isBalanced(testCases[0]), "<code>isBalanced("[]")</code> should return true.");'
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- text: '<code>isBalanced("]][[[][][][]][")</code>应该返回false。'
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testString: 'assert(!isBalanced(testCases[1]), "<code>isBalanced("]][[[][][][]][")</code> should return false.");'
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- text: '<code>isBalanced("[][[[[][][[[]]]]]]")</code>应该返回true。'
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testString: 'assert(isBalanced(testCases[2]), "<code>isBalanced("[][[[[][][[[]]]]]]")</code> should return true.");'
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- text: '<code>isBalanced("][")</code>应该返回true。'
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testString: 'assert(!isBalanced(testCases[3]), "<code>isBalanced("][")</code> should return true.");'
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- text: '<code>isBalanced("[[[]]]][[]")</code>应该返回true。'
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testString: 'assert(!isBalanced(testCases[4]), "<code>isBalanced("[[[]]]][[]")</code> should return true.");'
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- text: '<code>isBalanced("][[]")</code>应该返回true。'
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testString: 'assert(!isBalanced(testCases[5]), "<code>isBalanced("][[]")</code> should return true.");'
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- text: '<code>isBalanced("][[][]][[[]]")</code>应该返回true。'
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testString: 'assert(!isBalanced(testCases[6]), "<code>isBalanced("][[][]][[[]]")</code> should return true.");'
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- text: '<code>isBalanced("[[][]]][")</code>应该返回true。'
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testString: 'assert(!isBalanced(testCases[7]), "<code>isBalanced("[[][]]][")</code> should return true.");'
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- text: '<code>isBalanced("[[[]]][[]]]][][[")</code>应该返回true。'
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testString: 'assert(!isBalanced(testCases[8]), "<code>isBalanced("[[[]]][[]]]][][[")</code> should return true.");'
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- text: '<code>isBalanced("[]][[]]][[[[][]]")</code>应该返回true。'
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testString: 'assert(!isBalanced(testCases[9]), "<code>isBalanced("[]][[]]][[[[][]]")</code> should return true.");'
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- text: '<code>isBalanced("][]][[][")</code>应该返回true。'
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testString: 'assert(!isBalanced(testCases[10]), "<code>isBalanced("][]][[][")</code> should return true.");'
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- text: '<code>isBalanced("[[]][[][]]")</code>应该返回true。'
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testString: 'assert(isBalanced(testCases[11]), "<code>isBalanced("[[]][[][]]")</code> should return true.");'
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- text: '<code>isBalanced("[[]]")</code>应该返回true。'
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testString: 'assert(isBalanced(testCases[12]), "<code>isBalanced("[[]]")</code> should return true.");'
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- text: '<code>isBalanced("]][]][[]][[[")</code>应该返回true。'
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testString: 'assert(!isBalanced(testCases[13]), "<code>isBalanced("]][]][[]][[[")</code> should return true.");'
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- text: '<code>isBalanced("][]][][[")</code>应该返回true。'
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testString: 'assert(!isBalanced(testCases[14]), "<code>isBalanced("][]][][[")</code> should return true.");'
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- text: '<code>isBalanced("][][")</code>应该返回true。'
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testString: 'assert(!isBalanced(testCases[15]), "<code>isBalanced("][][")</code> should return true.");'
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- text: '<code>isBalanced("[[]]][][][[]][")</code>应该返回true。'
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testString: 'assert(!isBalanced(testCases[16]), "<code>isBalanced("[[]]][][][[]][")</code> should return true.");'
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- text: <code>isBalanced("")</code>应该返回true。
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testString: 'assert(isBalanced(testCases[17]), "<code>isBalanced("")</code> should return true.");'
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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 isBalanced (str) {
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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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