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The Fetch API provides a modern, promise-based way to make HTTP requests. It's the successor to XMLHttpRequest and offers a cleaner, more powerful interface for fetching resources.
Uses async/await for clean code
Supports all HTTP methods
Built-in to all modern browsers
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Fetch API Demo</title>
</head>
<body>
<div class="container">
<h1>🌐 Fetch API Demo</h1>
<p class="subtitle">Load data from an API using modern fetch()</p>
<button id="loadBtn">📥 Load Users</button>
<div class="result-box" id="resultBox">
<div class="result-title">API Response</div>
<p style="color: #6b7280; text-align: center; padding: 20px;">Click the button to load data</p>
</div>
</div>
</body>
</html>Loading preview...
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>POST Request Demo</title>
</head>
<body>
<div class="container">
<h1>📤 POST Request Demo</h1>
<p class="subtitle">Send data to an API using fetch() POST method</p>
<form id="postForm">
<div class="form-group">
<label for="title">Title</label>
<input type="text" id="title" placeholder="Enter post title" required>
</div>
<div class="form-group">
<label for="body">Body</label>
<textarea id="body" placeholder="Enter post content" required></textarea>
</div>
<button type="submit">📮 Send POST Request</button>
</form>
<div class="response-box" id="responseBox">
<div class="response-title">Server Response:</div>
<div class="response-data" id="responseData"></div>
</div>
</div>
</body>
</html>Loading preview...
methodGET, POST, PUT, DELETE, etc.
headersRequest headers (Content-Type, etc.)
bodyRequest body (JSON, FormData, etc.)
modecors, no-cors, same-origin
response.ok before parsing data