62 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			62 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| ---
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| id: 587d7dab367417b2b2512b6f
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| title: Use the some Method to Check that Any Elements in an Array Meet a Criteria
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| challengeType: 1
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| videoUrl: ''
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| localeTitle: 使用某些方法检查阵列中的任何元素是否符合条件
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| ---
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| 
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| ## Description
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| <section id="description"> <code>some</code>方法适用于数组,以检查是否有<em>任何</em>元素通过了特定的测试。它返回一个布尔值 - 如果任何值满足条件,则返回<code>true</code>否则返回<code>false</code> 。例如,以下代码将检查<code>numbers</code>数组中的任何元素是否小于10: <blockquote> var number = [10,50,8,220,110,11]; <br> numbers.some(function(currentValue){ <br> return currentValue <10; <br> }); <br> //返回true </blockquote></section>
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| 
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| ## Instructions
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| <section id="instructions">使用<code>checkPositive</code>函数中的<code>some</code>方法检查<code>arr</code>任何元素是否为正数。该函数应返回一个布尔值。 </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: 您的代码应该使用<code>some</code>方法。
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|     testString: 'assert(code.match(/\.some/g), "Your code should use the <code>some</code> method.");'
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|   - text: '<code>checkPositive([1, 2, 3, -4, 5])</code>应该返回<code>true</code> 。'
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|     testString: 'assert(checkPositive([1, 2, 3, -4, 5]), "<code>checkPositive([1, 2, 3, -4, 5])</code> should return <code>true</code>.");'
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|   - text: '<code>checkPositive([1, 2, 3, 4, 5])</code>应该返回<code>true</code> 。'
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|     testString: 'assert(checkPositive([1, 2, 3, 4, 5]), "<code>checkPositive([1, 2, 3, 4, 5])</code> should return <code>true</code>.");'
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|   - text: '<code>checkPositive([-1, -2, -3, -4, -5])</code>应该返回<code>false</code> 。'
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|     testString: 'assert(!checkPositive([-1, -2, -3, -4, -5]), "<code>checkPositive([-1, -2, -3, -4, -5])</code> should return <code>false</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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| function checkPositive(arr) {
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|   // Add your code below this line
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| 
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| 
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|   // Add your code above this line
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| }
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| checkPositive([1, 2, 3, -4, 5]);
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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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| 
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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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