AWS, JavaScript, React - Deploy Web Apps on the Cloud - Validating Forms in React - Part 4

The video tutorial discusses how to manage input field validation in a form using React. It begins by addressing the issue of input fields being highlighted in red immediately upon form load, which some users may not prefer. The tutorial then explains how to use the on blur event to change the field color to red only when an error occurs. It covers setting up a React state object to track which fields have been interacted with and updating this state using a handle blur function. The tutorial also describes how to display error messages conditionally using a show error function and concludes with code optimization tips.

What is the purpose of the 'on blur' event in form validation?

Describe how to manage the state of touched fields in a form.

How can you indicate that a field has been interacted with in a form?

What is the significance of not overwriting the existing state when updating?

Explain how to display a red rectangle for invalid fields.

What happens when a user deletes input in a field and then clicks away?

What are the steps to simplify the error handling function in the form?