Summary: in this tutorial, you will learn about JavaScript form API: accessing the form, getting values of the elements, validating form data, and submitting the form.

HTML form validation can be done by JavaScript. If a form field (fname) is empty, this function alerts a message, and returns false, to prevent the form from being submitted:

Oct 5, 2025 · But instead of this declarative approach, web apps sometimes use JavaScript APIs such as fetch() to send data programmatically to an endpoint that expects a form submission. This article …

Jan 20, 2023 · In this article, you have learned how to submit a form with JavaScript and how it works with the various DOM methods. There are other ways you can do this, but this is a straightforward …

Mar 10, 2025 · Forms and control elements, such as <input> have a lot of special properties and events. Working with forms will be much more convenient when we learn them. Document forms are …

Learn how to handle forms in JavaScript, including form validation, submission, and event handling to enhance user experience.

Forms are fundamental components of web applications, enabling user interaction and data collection. This guide will help you understand how to access form elements, get and set input values, handle …

Nov 3, 2021 · You can use JavaScript to respond to user interactions on your form, reveal additional form fields, submit a form, and much more. Help users fill in additional form controls

Sep 22, 2025 · Learn JavaScript form handling and validation with DOM examples; a beginner-friendly guide to capturing input, preventing errors, and improving UX. Forms are essential for making …

Oct 7, 2025 · Enhance your web forms with JavaScript. Explore examples of real-time client-side validation, multi-step forms, and asynchronous submission for a better user experience.