139 lines
3.1 KiB
Markdown
139 lines
3.1 KiB
Markdown
---
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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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---
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## Description
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<section id='description'>
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Now that you're getting data from a JSON API, you can display it in the HTML.
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You can use a <code>forEach</code> method to loop through the data since the cat photo objects are held in an array. As you get to each item, you can modify the HTML elements.
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First, declare an html variable with <code>var html = "";</code>.
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Then, loop through the JSON, adding HTML to the variable that wraps the key names in <code>strong</code> tags, followed by the value. When the loop is finished, you render it.
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Here's the code that does this:
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```js
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json.forEach(function(val) {
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var keys = Object.keys(val);
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html += "<div class = 'cat'>";
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keys.forEach(function(key) {
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html += "<strong>" + key + "</strong>: " + val[key] + "<br>";
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});
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html += "</div><br>";
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});
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```
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</section>
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## Instructions
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<section id='instructions'>
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Add a <code>forEach</code> method to loop over the JSON data and create the HTML elements to display it.
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Here is some example JSON
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```json
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[
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{
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"id":0,
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"imageLink":"https://s3.amazonaws.com/freecodecamp/funny-cat.jpg",
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"altText":"A white cat wearing a green helmet shaped melon on its head. ",
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"codeNames":[ "Juggernaut", "Mrs. Wallace", "Buttercup"
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]
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}
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]
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```
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</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: Your code should store the data in the <code>html</code> variable
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testString: assert(code.match(/html\s+?(\+=|=\shtml\s\+)/g));
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- text: Your code should use a <code>forEach</code> method to loop over the JSON data from the API.
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testString: assert(code.match(/json\.forEach/g));
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- text: Your code should wrap the key names in <code>strong</code> tags.
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testString: assert(code.match(/<strong>.+<\/strong>/g));
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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">
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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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