63 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			63 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| ---
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| id: cf1111c1c11feddfaeb1bdef
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| title: Iterate with JavaScript While Loops
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| challengeType: 1
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| videoUrl: ''
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| localeTitle: 在循环时使用JavaScript进行迭代
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| ---
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| 
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| ## Description
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| <section id="description">您可以使用循环多次运行相同的代码。我们将学习的第一种类型的循环称为“ <code>while</code> ”循环,因为它在“while”运行时指定的条件为true,并且一旦该条件不再为真就停止。 <blockquote> var ourArray = []; <br> var i = 0; <br>而(i <5){ <br> ourArray.push(ⅰ); <br>我++; <br> } </blockquote>让我们尝试通过将值推送到数组来实现while循环。 </section>
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| 
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| ## Instructions
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| <section id="instructions">使用<code>while</code>循环将数字0到4推送到<code>myArray</code> 。 </section>
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| 
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| ## Tests
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| <section id='tests'>
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| 
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| ```yml
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| tests:
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|   - text: 你应该使用<code>while</code>循环。
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|     testString: 'assert(code.match(/while/g), "You should be using a <code>while</code> loop for this.");'
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|   - text: '<code>myArray</code>应该等于<code>[0,1,2,3,4]</code> 。'
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|     testString: 'assert.deepEqual(myArray, [0,1,2,3,4], "<code>myArray</code> should equal <code>[0,1,2,3,4]</code>.");'
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| 
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| ```
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| 
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| </section>
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| 
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| ## Challenge Seed
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| <section id='challengeSeed'>
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| 
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| <div id='js-seed'>
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| 
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| ```js
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| // Setup
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| var myArray = [];
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| 
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| // Only change code below this line.
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| 
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| ```
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| 
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| </div>
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| 
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| 
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| ### After Test
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| <div id='js-teardown'>
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| 
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| ```js
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| console.info('after the test');
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| ```
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| 
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| </div>
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| 
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| </section>
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| 
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| ## Solution
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| <section id='solution'>
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| 
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| ```js
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| // solution required
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| ```
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| </section>
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