freeCodeCamp/curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/boo-who.chinese.md

id	title	isRequired	challengeType	videoUrl	localeTitle
a77dbc43c33f39daa4429b4f	Boo who	true	5		嘘谁

Description

检查值是否归类为布尔基元。返回true或false。布尔基元是true和false。如果卡住，请记得使用Read-Search-Ask 。尝试配对程序。编写自己的代码。

Instructions

Tests

tests:
  - text: <code>booWho(true)</code>应该返回true。
    testString: 'assert.strictEqual(booWho(true), true, "<code>booWho(true)</code> should return true.");'
  - text: <code>booWho(false)</code>应该返回true。
    testString: 'assert.strictEqual(booWho(false), true, "<code>booWho(false)</code> should return true.");'
  - text: '<code>booWho([1, 2, 3])</code>应该返回false。'
    testString: 'assert.strictEqual(booWho([1, 2, 3]), false, "<code>booWho([1, 2, 3])</code> should return false.");'
  - text: '<code>booWho([].slice)</code>应该返回false。'
    testString: 'assert.strictEqual(booWho([].slice), false, "<code>booWho([].slice)</code> should return false.");'
  - text: '<code>booWho({ &quot;a&quot;: 1 })</code>应该返回false。'
    testString: 'assert.strictEqual(booWho({ "a": 1 }), false, "<code>booWho({ "a": 1 })</code> should return false.");'
  - text: <code>booWho(1)</code>应该返回false。
    testString: 'assert.strictEqual(booWho(1), false, "<code>booWho(1)</code> should return false.");'
  - text: <code>booWho(NaN)</code>应该返回false。
    testString: 'assert.strictEqual(booWho(NaN), false, "<code>booWho(NaN)</code> should return false.");'
  - text: <code>booWho(&quot;a&quot;)</code>应该返回false。
    testString: 'assert.strictEqual(booWho("a"), false, "<code>booWho("a")</code> should return false.");'
  - text: <code>booWho(&quot;true&quot;)</code>应该返回false。
    testString: 'assert.strictEqual(booWho("true"), false, "<code>booWho("true")</code> should return false.");'
  - text: <code>booWho(&quot;false&quot;)</code>应该返回false。
    testString: 'assert.strictEqual(booWho("false"), false, "<code>booWho("false")</code> should return false.");'

Challenge Seed

function booWho(bool) {
  // What is the new fad diet for ghost developers? The Boolean.
  return bool;
}

booWho(null);

Solution

// solution required