How to clear status before validation on Formik submit?

Introduction

When using Formik for form management, you may sometimes need to clear certain states before submitting the form. This can be achieved by adding appropriate logic to the Formik form submission handler.

Solution

Assume we have a state called statusMessage that needs to be cleared before each form submission. Here are the specific implementation steps:

1. Define the State: In the component, use useState to define the statusMessage state.
2. Create the Form Submission Handler: Define a function for the form submission in Formik's onSubmit property.
3. Clear the State: Within the submission handler, add code to clear the statusMessage state before the submission logic executes.
4. Continue with Submission Logic: After clearing the state, proceed with the submission logic to the server.

Example Code

jsx
import React, { useState } from 'react';
import { Formik, Form, Field } from 'formik';

function MyForm() {
    const [statusMessage, setStatusMessage] = useState('');

    const handleSubmit = (values, { setSubmitting }) => {
        // Clear the state
        setStatusMessage('');

        // Simulate data submission
        setTimeout(() => {
            console.log('Data submitted:', values);
            setSubmitting(false);
        }, 400);
    };

    return (
        <div>
            <Formik
                initialValues={{ name: '' }}
                onSubmit={handleSubmit}
            >
                {({ isSubmitting }) => (
                    <Form>
                        <Field type="text" name="name" />
                        <button type="submit" disabled={isSubmitting}>
                            Submit
                        </button>
                    </Form>
                )}
            </Formik>
            {statusMessage && <div>{statusMessage}</div>}
        </div>
    );
}

export default MyForm;

Notes

• Ensure the state-clearing logic precedes the submission handling logic to prevent users from seeing previous submission status information.
• Test the form's behavior to confirm that the state-clearing logic does not interfere with normal form functionality.

Conclusion

By following these steps and examples, you can clear the specified state before Formik form submission, ensuring each submission starts from a clean state and provides a better user experience.