How can I implement async form submission in my web app?

How can I implement async form submission in my web app?

You can use JavaScript's Fetch API to send form data asynchronously without reloading the page.

Can you show me a code example?

Sure! Here's a simple example:

const form = document.getElementById('myForm');
form.addEventListener('submit', async (event) => {
    event.preventDefault();
    const formData = new FormData(form);
    const response = await fetch('/submit', {
        method: 'POST',
        body: formData,
    });
    const result = await response.json();
    console.log(result);
});

What if I want to handle errors during submission?

You can add a try-catch block around the fetch call to handle errors gracefully. Here's how:

try {
    const response = await fetch('/submit', { method: 'POST', body: formData });
    if (!response.ok) throw new Error('Network response was not ok');
    const result = await response.json();
    console.log(result);
} catch (error) {
    console.error('There was a problem with the submission:', error);
}