107 lines
3.5 KiB
Markdown
107 lines
3.5 KiB
Markdown
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---
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id: 587d7fae367417b2b2512be5
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title: Convert JSON Data to HTML
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challengeType: 6
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videoUrl: ''
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localeTitle: 将JSON数据转换为HTML
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---
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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
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tests:
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- text: 您的代码应该将数据存储在<code>html</code>变量中
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testString: 'assert(code.match(/html\s+?(\+=|=\shtml\s\+)/g), "Your code should store the data in the <code>html</code> variable");'
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- text: 您的代码应该使用<code>forEach</code>方法来循环API中的JSON数据。
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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.");'
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- text: 您的代码应将密钥名称包装在<code>strong</code>标记中。
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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
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<script>
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document.addEventListener('DOMContentLoaded',function(){
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document.getElementById('getMessage').onclick=function(){
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req=new XMLHttpRequest();
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req.open("GET",'/json/cats.json',true);
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req.send();
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req.onload=function(){
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json=JSON.parse(req.responseText);
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var html = "";
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// Add your code below this line
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// Add your code above this line
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document.getElementsByClassName('message')[0].innerHTML=html;
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};
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};
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});
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</script>
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<style>
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body {
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text-align: center;
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font-family: "Helvetica", sans-serif;
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}
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h1 {
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font-size: 2em;
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font-weight: bold;
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}
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.box {
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border-radius: 5px;
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background-color: #eee;
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padding: 20px 5px;
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}
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button {
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color: white;
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background-color: #4791d0;
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border-radius: 5px;
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border: 1px solid #4791d0;
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padding: 5px 10px 8px 10px;
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}
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button:hover {
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background-color: #0F5897;
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border: 1px solid #0F5897;
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}
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</style>
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<h1>Cat Photo Finder</h1>
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<p class="message box">
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The message will go here
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</p>
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<p>
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<button id="getMessage">
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Get Message
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</button>
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</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
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// solution required
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```
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</section>
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