Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Prettify JSON data in textarea input in JavaScript?
For this, use JSON.parse() along with JSON.stringify().
Example
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initialscale=1.0">
<title>Document</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/fontawesome/4.7.0/css/font-awesome.min.css">
</head>
<body>
<textarea id="prettyJSONFormat" cols=100 rows=20></textarea>
<button onclick="printTheJSONInPrettyFormat()">Click The Button To
get the Pretty JSON</button>
<script>
function printTheJSONInPrettyFormat() {
var badJSON = document.getElementById('prettyJSONFormat').value;
var parseJSON = JSON.parse(badJSON);
var JSONInPrettyFormat = JSON.stringify(parseJSON, undefined, 4);
document.getElementById('prettyJSONFormat').value =
JSONInPrettyFormat;
}
</script>
</body>
</html>To run the above program, just save the file name anyName.html(index.html) and right click on the file and select the option open with live server in VS Code editor.
Output
This will produce the following output −
Now, I am going to put some bad (unformatted) JSON. The sample JSON data is as follows −
After clicking the button, you will get the following sample output i.e. properly formatted JSON −
Updated on: 12-Sep-2020
6K+ Views
Advertisements