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											2018-10-10 18:03:03 -04:00
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							|  |  |  |  | id: 587d7fae367417b2b2512be5 | 
					
						
							|  |  |  |  | title: Convert JSON Data to HTML | 
					
						
							|  |  |  |  | challengeType: 6 | 
					
						
							|  |  |  |  | videoUrl: '' | 
					
						
							|  |  |  |  | localeTitle: 将JSON数据转换为HTML | 
					
						
							|  |  |  |  | --- | 
					
						
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							|  |  |  |  | ## Description
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							|  |  |  |  | <section id="description">现在您正在从JSON API获取数据,您可以在HTML中显示它。您可以使用<code>forEach</code>方法循环数据,因为cat照片对象保存在数组中。当您到达每个项目时,您可以修改HTML元素。首先,使用<code>var html = "";</code>声明一个html变量<code>var html = "";</code> 。然后,遍历JSON,将HTML添加到包含<code>strong</code>标记中的键名的变量,然后是值。循环结束后,渲染它。这是执行此操作的代码: <blockquote> json.forEach(function(val){ <br> var keys = Object.keys(val); <br> html + =“<div class ='cat'>”; <br> keys.forEach(function(key){ <br> html + =“<strong>”+ key +“</ strong>:”+ val [key] +“<br>”; <br> }); <br> html + =“</ div> <br>”; <br> }); </blockquote></section> | 
					
						
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							|  |  |  |  | ## Instructions
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							|  |  |  |  | <section id="instructions">添加<code>forEach</code>方法以循环JSON数据并创建HTML元素以显示它。这是一些JSON示例<blockquote> [ <br> { <br> “ID”:0, <br> “IMAGELINK”: “https://s3.amazonaws.com/freecodecamp/funny-cat.jpg” <br> “altText”:“头上戴着绿色头盔形状瓜的白猫。”, <br> “codeNames”:[“Juggernaut”,“华莱士夫人”,“毛茛” <br> ] <br> } <br> ] </blockquote></section> | 
					
						
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							|  |  |  |  | ## Tests
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							|  |  |  |  | <section id='tests'> | 
					
						
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							|  |  |  |  | ```yml | 
					
						
							|  |  |  |  | tests: | 
					
						
							|  |  |  |  |   - text: 您的代码应该将数据存储在<code>html</code>变量中 | 
					
						
							|  |  |  |  |     testString: 'assert(code.match(/html\s+?(\+=|=\shtml\s\+)/g), "Your code should store the data in the <code>html</code> variable");' | 
					
						
							|  |  |  |  |   - text: 您的代码应该使用<code>forEach</code>方法来循环API中的JSON数据。 | 
					
						
							|  |  |  |  |     testString: 'assert(code.match(/json\.forEach/g), "Your code should use a <code>forEach</code> method to loop over the JSON data from the API.");' | 
					
						
							|  |  |  |  |   - text: 您的代码应将密钥名称包装在<code>strong</code>标记中。 | 
					
						
							|  |  |  |  |     testString: 'assert(code.match(/<strong>.+<\/strong>/g), "Your code should wrap the key names in <code>strong</code> tags.");' | 
					
						
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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='html-seed'> | 
					
						
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							|  |  |  |  | ```html | 
					
						
							|  |  |  |  | <script> | 
					
						
							|  |  |  |  |   document.addEventListener('DOMContentLoaded',function(){ | 
					
						
							|  |  |  |  |     document.getElementById('getMessage').onclick=function(){ | 
					
						
							|  |  |  |  |       req=new XMLHttpRequest(); | 
					
						
							|  |  |  |  |       req.open("GET",'/json/cats.json',true); | 
					
						
							|  |  |  |  |       req.send(); | 
					
						
							|  |  |  |  |       req.onload=function(){ | 
					
						
							|  |  |  |  |         json=JSON.parse(req.responseText); | 
					
						
							|  |  |  |  |         var html = ""; | 
					
						
							|  |  |  |  |         // Add your code below this line | 
					
						
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							|  |  |  |  |         // Add your code above this line | 
					
						
							|  |  |  |  |         document.getElementsByClassName('message')[0].innerHTML=html; | 
					
						
							|  |  |  |  |       }; | 
					
						
							|  |  |  |  |     }; | 
					
						
							|  |  |  |  |   }); | 
					
						
							|  |  |  |  | </script> | 
					
						
							|  |  |  |  | <style> | 
					
						
							|  |  |  |  |   body { | 
					
						
							|  |  |  |  |     text-align: center; | 
					
						
							|  |  |  |  |     font-family: "Helvetica", sans-serif; | 
					
						
							|  |  |  |  |   } | 
					
						
							|  |  |  |  |   h1 { | 
					
						
							|  |  |  |  |     font-size: 2em; | 
					
						
							|  |  |  |  |     font-weight: bold; | 
					
						
							|  |  |  |  |   } | 
					
						
							|  |  |  |  |   .box { | 
					
						
							|  |  |  |  |     border-radius: 5px; | 
					
						
							|  |  |  |  |     background-color: #eee; | 
					
						
							|  |  |  |  |     padding: 20px 5px; | 
					
						
							|  |  |  |  |   } | 
					
						
							|  |  |  |  |   button { | 
					
						
							|  |  |  |  |     color: white; | 
					
						
							|  |  |  |  |     background-color: #4791d0; | 
					
						
							|  |  |  |  |     border-radius: 5px; | 
					
						
							|  |  |  |  |     border: 1px solid #4791d0; | 
					
						
							|  |  |  |  |     padding: 5px 10px 8px 10px; | 
					
						
							|  |  |  |  |   } | 
					
						
							|  |  |  |  |   button:hover { | 
					
						
							|  |  |  |  |     background-color: #0F5897; | 
					
						
							|  |  |  |  |     border: 1px solid #0F5897; | 
					
						
							|  |  |  |  |   } | 
					
						
							|  |  |  |  | </style> | 
					
						
							|  |  |  |  | <h1>Cat Photo Finder</h1> | 
					
						
							| 
									
										
										
										
											2019-02-24 20:38:10 +05:30
										 |  |  |  | <p class="message"> | 
					
						
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											2018-10-10 18:03:03 -04:00
										 |  |  |  |   The message will go here | 
					
						
							|  |  |  |  | </p> | 
					
						
							|  |  |  |  | <p> | 
					
						
							|  |  |  |  |   <button id="getMessage"> | 
					
						
							|  |  |  |  |     Get Message | 
					
						
							|  |  |  |  |   </button> | 
					
						
							|  |  |  |  | </p> | 
					
						
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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 | 
					
						
							|  |  |  |  | // solution required | 
					
						
							|  |  |  |  | ``` | 
					
						
							|  |  |  |  | </section> |