React Final Form: How to Handle Conditional Fields Based on User Input?
I've looked through the documentation and I'm still confused about I've looked through the documentation and I'm still confused about Quick question that's been bugging me - I'm using React Final Form to create a multi-step form where certain fields should appear based on previous user selections..... For example, if a user selects 'Yes' for a question, I want additional fields to appear for further details. I've set up the form but I'm struggling to manage the visibility of these conditional fields dynamically. Specifically, I'm trying to use the `Field` component to render fields conditionally based on a value from another field. Here's a simplified version of my code: ```javascript import React from 'react'; import { Form, Field } from 'react-final-form'; const MyForm = () => { const onSubmit = (values) => { console.log(values); }; return ( <Form onSubmit={onSubmit} render={({ handleSubmit }) => ( <form onSubmit={handleSubmit}> <div> <label>Do you have a pet?</label> <Field name="hasPet" component="select"> <option value="">Select...</option> <option value="yes">Yes</option> <option value="no">No</option> </Field> </div> {/* Attempting to conditionally render this field based on the selection above */} <Field name="petDetails"> {({ input, meta }) => ( <div> {input.value === 'yes' && ( <div> <label>What type of pet do you have?</label> <input {...input} type="text" /> </div> )} {meta.behavior && meta.touched && <span>{meta.behavior}</span>} </div> )} </Field> <button type="submit">Submit</button> </form> )} /> ); }; export default MyForm; ``` I've tried a few approaches to manage the conditional rendering using state, but they feel clunky, and I often end up with errors when submitting the form, like "Unhandled Rejection (TypeError): want to read property 'value' of undefined". Is there a cleaner way to handle conditional fields in React Final Form? Any advice or best practices would be appreciated! For context: I'm using Javascript on Ubuntu. Is there a better approach? I'm working on a API that needs to handle this. Any ideas what could be causing this? My development environment is Debian. I appreciate any insights!