Home JavaScript Reference fetch()

fetch()

function ES6

Makes HTTP requests and returns a Promise that resolves to a Response object.

Syntax

fetch(url, options)

Example

javascript

// GET request
const res = await fetch('https://api.example.com/data');
const data = await res.json();

// POST request
const response = await fetch('/api/users', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ name: 'Alice', email: 'alice@example.com' })
});
const created = await response.json();

// Error handling
if (!response.ok) {
    throw new Error(`HTTP error! status: ${response.status}`);
}

createElement() / appendChild() / innerHTML

localStorage / sessionStorage