What type of code is embedded into an HTML page and helps process web form input on the client side?

In web development, a client-side script is code that runs in the user's browser rather than on the server. This type of code is used to enhance user interactivity and responds to user actions in real time without needing to communicate with the server. For instance, JavaScript is a common client-side scripting language that helps in processing web form input directly within the browser. This can include validating user input, dynamically updating the user interface, or managing user interactions without needing to refresh the page.

Unlike server-side scripts, which process data on the server and then send the resulting HTML back to the client, client-side scripts allow for immediate feedback to the user. This responsiveness is crucial for creating a seamless user experience. By using client-side scripts, developers can ensure that form inputs are validated on the client side, reducing server load and improving overall performance. Client-side scripting plays a vital role in modern web applications, making it an essential aspect of web development.