Formik Archives

There is no doubt that web forms play an integral role in our web site or applications. By default, they provide a useful set of elements and features — from legends and fieldsets to native validation and states — but they only get us so far when we start to consider the peculiarities of using them. For example, how can we manipulate the state of a form? How about different forms of validation? Even hooking a form up to post submissions is a daunting effort at times. Component-driven front-end libraries, like React, can ease the task of wiring web forms but can also get verbose and redundant. That’s why I want to introduce you to Formik, a small library that solves the three most annoying parts of writing forms in React: State manipulation Form validation (and error messages) Form ...

For almost every form that you create, you will want some sort of validation. In React, working with and validating forms can be a bit verbose, so in this article we are going to use a package called Formik to help us out! TLDR Create a React project Add the Formik (and Yup) packages Customize the Formik component with an onSubmit callback and a validate function for error messages then display those error messages to the user.> View the final code on CodeSandbox! Here's a sneak peak at what we are going to create. https://codesandbox.io/s/4203r4582w Creating the React Project For this demo, I'll be using CodeSandbox. You can use CodeSandbox as well or use your local environment. Totally up to you. Regardless of what you use for this demo, you need to start with a new React ...

Tag: Formik

Using Formik to Handle Forms in React