React formik

This project is maintained. New versions of this project are released. Naturally, we aim for the lowest time to mount possible because longer mounting times can cause perceived latencies and delays. In these situations, you might want to check out uncontrolled components, an alternative technique for implementing input forms.

That’s when I found Formik. It comes with all the real-world features you expect in a form. It takes an hour to learn, and then you can build out your forms in a fraction of the time with a fraction of the code.

In this mini-course, we’ll go through the process of creating a form using Formik. Formik makes building complex forms easy. It also calls validation function for us on every submit. The initial values of each field are set in the initialValues property. The prospect of speeding up form development is a very attractive reason to adopt a new package: Enter Formik.

And perhaps this is fine since forms could potentially be business-logic-heavy. It has been a joy to work with, so far, with a development cycle that is top-notch and a true lack of ceremony around creating reusable, composable components. React ’s job is to help with the. Replace input with fields as it provides more control over the state. Added onChange and value event handler which is also provided by the Formikcomponent as a prop.

But since the input attribute here is internal to react -select, it has a generic name. So after I blur, formik. After running this our project structure should look like this: Now open the App. Thankfully though we have all the state for the form up a level and preserved.

You also know how to run form validation against your form using Formik. For almost every form that you create, you will want some sort of validation. It has support for schema-base form-level validation from Yup.

Import everything from the yup library with other import statements. These are fair advantages of using a component library like react -native-elements. It accepts the reference of the key check itself as the first parameter.

Validation errors not showing up? Scroll to the very bottom to see a working test. VS react -formawesome Complex library for creating awesome forms.

Do you think we are missing an alternative of formik or a related project? Reducer is the hook to use for any complex state management. The same goes for applying client-side data validation.

What might be troublesome is keeping all your forms consistent across a bigger project. If every developer in your team has a slightly different approach, it may turn out to be messy. Speaking of that, this article helped me finally understand them better.