62 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			62 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
---
 | 
						||
id: 587d7dab367417b2b2512b6f
 | 
						||
title: Use the some Method to Check that Any Elements in an Array Meet a Criteria
 | 
						||
challengeType: 1
 | 
						||
videoUrl: ''
 | 
						||
localeTitle: 使用某些方法检查阵列中的任何元素是否符合条件
 | 
						||
---
 | 
						||
 | 
						||
## Description
 | 
						||
<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>
 | 
						||
 | 
						||
## Instructions
 | 
						||
<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>
 | 
						||
 | 
						||
## Tests
 | 
						||
<section id='tests'>
 | 
						||
 | 
						||
```yml
 | 
						||
tests:
 | 
						||
  - text: 您的代码应该使用<code>some</code>方法。
 | 
						||
    testString: 'assert(code.match(/\.some/g), "Your code should use the <code>some</code> method.");'
 | 
						||
  - text: '<code>checkPositive([1, 2, 3, -4, 5])</code>应该返回<code>true</code> 。'
 | 
						||
    testString: 'assert(checkPositive([1, 2, 3, -4, 5]), "<code>checkPositive([1, 2, 3, -4, 5])</code> should return <code>true</code>.");'
 | 
						||
  - text: '<code>checkPositive([1, 2, 3, 4, 5])</code>应该返回<code>true</code> 。'
 | 
						||
    testString: 'assert(checkPositive([1, 2, 3, 4, 5]), "<code>checkPositive([1, 2, 3, 4, 5])</code> should return <code>true</code>.");'
 | 
						||
  - text: '<code>checkPositive([-1, -2, -3, -4, -5])</code>应该返回<code>false</code> 。'
 | 
						||
    testString: 'assert(!checkPositive([-1, -2, -3, -4, -5]), "<code>checkPositive([-1, -2, -3, -4, -5])</code> should return <code>false</code>.");'
 | 
						||
 | 
						||
```
 | 
						||
 | 
						||
</section>
 | 
						||
 | 
						||
## Challenge Seed
 | 
						||
<section id='challengeSeed'>
 | 
						||
 | 
						||
<div id='js-seed'>
 | 
						||
 | 
						||
```js
 | 
						||
function checkPositive(arr) {
 | 
						||
  // Add your code below this line
 | 
						||
 | 
						||
 | 
						||
  // Add your code above this line
 | 
						||
}
 | 
						||
checkPositive([1, 2, 3, -4, 5]);
 | 
						||
 | 
						||
```
 | 
						||
 | 
						||
</div>
 | 
						||
 | 
						||
 | 
						||
 | 
						||
</section>
 | 
						||
 | 
						||
## Solution
 | 
						||
<section id='solution'>
 | 
						||
 | 
						||
```js
 | 
						||
// solution required
 | 
						||
```
 | 
						||
</section>
 |