70 lines
1.7 KiB
Markdown
70 lines
1.7 KiB
Markdown
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---
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id: 56104e9e514f539506016a5c
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title: Iterate Odd Numbers With a For Loop
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challengeType: 1
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videoUrl: ''
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localeTitle: 使用For循环迭代奇数
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---
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## Description
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<section id="description"> For循环不必一次迭代一个循环。通过改变我们的<code>final-expression</code> ，我们可以计算偶数。我们将从<code>i = 0</code>开始并在<code>i < 10</code>循环。我们会增加<code>i</code>的2每个回路与<code>i += 2</code> 。 <blockquote> var ourArray = []; <br> for（var i = 0; i <10; i + = 2）{ <br> ourArray.push（ⅰ）; <br> } </blockquote> <code>ourArray</code>现在包含<code>[0,2,4,6,8]</code> 。让我们改变<code>initialization</code>这样我们就可以用奇数来计算。 </section>
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## Instructions
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<section id="instructions">使用<code>for</code>循环将奇数从1到9推送到<code>myArray</code> 。 </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: 你应该为此使用<code>for</code>循环。
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testString: 'assert(code.match(/for\s*\(/g).length > 1, "You should be using a <code>for</code> loop for this.");'
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- text: '<code>myArray</code>应该等于<code>[1,3,5,7,9]</code> 。'
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testString: 'assert.deepEqual(myArray, [1,3,5,7,9], "<code>myArray</code> should equal <code>[1,3,5,7,9]</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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// Example
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var ourArray = [];
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for (var i = 0; i < 10; i += 2) {
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ourArray.push(i);
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}
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// Setup
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var myArray = [];
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// Only change code below this line.
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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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