freeCodeCamp/curriculum/challenges/chinese/08-coding-interview-prep/rosetta-code/balanced-brackets.chinese.md

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title id challengeType videoUrl localeTitle
Balanced brackets 594dc6c729e5700999302b45 5 平衡括号

Description

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。

例子:

(空)是的

[]是的

][

[][]是的

][][

[]][[] false

[[[[]]]]是的

Instructions

Tests

tests:
  - text: <code>isBalanced</code>是一个函数。
    testString: 'assert(typeof isBalanced === "function", "<code>isBalanced</code> is a function.");'
  - text: '<code>isBalanced(&quot;[]&quot;)</code>应该返回true。'
    testString: 'assert(isBalanced(testCases[0]), "<code>isBalanced("[]")</code> should return true.");'
  - text: '<code>isBalanced(&quot;]][[[][][][]][&quot;)</code>应该返回false。'
    testString: 'assert(!isBalanced(testCases[1]), "<code>isBalanced("]][[[][][][]][")</code> should return false.");'
  - text: '<code>isBalanced(&quot;[][[[[][][[[]]]]]]&quot;)</code>应该返回true。'
    testString: 'assert(isBalanced(testCases[2]), "<code>isBalanced("[][[[[][][[[]]]]]]")</code> should return true.");'
  - text: '<code>isBalanced(&quot;][&quot;)</code>应该返回true。'
    testString: 'assert(!isBalanced(testCases[3]), "<code>isBalanced("][")</code> should return true.");'
  - text: '<code>isBalanced(&quot;[[[]]]][[]&quot;)</code>应该返回true。'
    testString: 'assert(!isBalanced(testCases[4]), "<code>isBalanced("[[[]]]][[]")</code> should return true.");'
  - text: '<code>isBalanced(&quot;][[]&quot;)</code>应该返回true。'
    testString: 'assert(!isBalanced(testCases[5]), "<code>isBalanced("][[]")</code> should return true.");'
  - text: '<code>isBalanced(&quot;][[][]][[[]]&quot;)</code>应该返回true。'
    testString: 'assert(!isBalanced(testCases[6]), "<code>isBalanced("][[][]][[[]]")</code> should return true.");'
  - text: '<code>isBalanced(&quot;[[][]]][&quot;)</code>应该返回true。'
    testString: 'assert(!isBalanced(testCases[7]), "<code>isBalanced("[[][]]][")</code> should return true.");'
  - text: '<code>isBalanced(&quot;[[[]]][[]]]][][[&quot;)</code>应该返回true。'
    testString: 'assert(!isBalanced(testCases[8]), "<code>isBalanced("[[[]]][[]]]][][[")</code> should return true.");'
  - text: '<code>isBalanced(&quot;[]][[]]][[[[][]]&quot;)</code>应该返回true。'
    testString: 'assert(!isBalanced(testCases[9]), "<code>isBalanced("[]][[]]][[[[][]]")</code> should return true.");'
  - text: '<code>isBalanced(&quot;][]][[][&quot;)</code>应该返回true。'
    testString: 'assert(!isBalanced(testCases[10]), "<code>isBalanced("][]][[][")</code> should return true.");'
  - text: '<code>isBalanced(&quot;[[]][[][]]&quot;)</code>应该返回true。'
    testString: 'assert(isBalanced(testCases[11]), "<code>isBalanced("[[]][[][]]")</code> should return true.");'
  - text: '<code>isBalanced(&quot;[[]]&quot;)</code>应该返回true。'
    testString: 'assert(isBalanced(testCases[12]), "<code>isBalanced("[[]]")</code> should return true.");'
  - text: '<code>isBalanced(&quot;]][]][[]][[[&quot;)</code>应该返回true。'
    testString: 'assert(!isBalanced(testCases[13]), "<code>isBalanced("]][]][[]][[[")</code> should return true.");'
  - text: '<code>isBalanced(&quot;][]][][[&quot;)</code>应该返回true。'
    testString: 'assert(!isBalanced(testCases[14]), "<code>isBalanced("][]][][[")</code> should return true.");'
  - text: '<code>isBalanced(&quot;][][&quot;)</code>应该返回true。'
    testString: 'assert(!isBalanced(testCases[15]), "<code>isBalanced("][][")</code> should return true.");'
  - text: '<code>isBalanced(&quot;[[]]][][][[]][&quot;)</code>应该返回true。'
    testString: 'assert(!isBalanced(testCases[16]), "<code>isBalanced("[[]]][][][[]][")</code> should return true.");'
  - text: <code>isBalanced(&quot;&quot;)</code>应该返回true。
    testString: 'assert(isBalanced(testCases[17]), "<code>isBalanced("")</code> should return true.");'

Challenge Seed

function isBalanced (str) {
  // Good luck!
  return true;
}

After Test

console.info('after the test');

Solution

// solution required