formik | Build forms in React , without the tears | Frontend Utils library

 by   formium TypeScript Version: 3.0.0-next.8 License: Apache-2.0

kandi X-RAY | formik Summary

kandi X-RAY | formik Summary

formik is a TypeScript library typically used in User Interface, Frontend Utils, React Native, React applications. formik has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Build forms in React, without the tears 😭

            kandi-support Support

              formik has a medium active ecosystem.
              It has 28188 star(s) with 2293 fork(s). There are 238 watchers for this library.
              It had no major release in the last 12 months.
              There are 515 open issues and 1462 have been closed. On average issues are closed in 234 days. There are 92 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of formik is 3.0.0-next.8

            kandi-Quality Quality

              formik has no bugs reported.

            kandi-Security Security

              formik has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              formik is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              formik releases are available to install and integrate.

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            kandi's functional review helps you automatically verify the functionalities of the libraries and avoid rework.
            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of formik
            Get all kandi verified functions for this library.

            formik Key Features

            No Key Features are available at this moment for formik.

            formik Examples and Code Snippets

            copy iconCopy
            const formik = useFormik({
              onSubmit: values => {
            import CustomFormGroup from "../utils/CustomFormGroup";
            import Form from "antd/lib/form
            Unselect MUI Multi select with initial value
            Lines of Code : 12dot img2License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            const initValues = { 
              assignTo: personList.filter(person => savedTask.assignTo.some(obj => ===
            const formik = useFormik({
              initialValues: initValues,
              onSubmit: (values) => {
            how to use react number format with formik
            Lines of Code : 51dot img4License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            const App = () => {
              const validate = (values) => {
                  const errors = {}
                  if (!values.title) {
                      errors.title = 'Required'
                  return errors
              const formik = useFormik({
                  initialValues: {
            How to set values in a multi-step Formik form with components that implement useField()
            Lines of Code : 25dot img5License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            const handleOptionalChange = (form) => {
              form.setFieldValue('optionalComments', '', false)
                    {({ field, form }) => (
            Re-populate a Select dropdown depending on another selection in a Formik form
            Lines of Code : 44dot img6License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            // State var to keep option array
            const [frequencyDayValues, setFrequencyDayValues] = useState([]);
            // On initialization, set your option array (with whatever logic needed, 
            // e.g. populateOptions() for an initial code of 55)
            formik form reset on action dispatch
            Lines of Code : 37dot img7License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
              const formik = useFormik({
                onSubmit: (values, { resetForm }) => {
                  dispatch(userActions.register(values, { resetForm }))
                validateOnChange: false,
                validateOnBlur: true
            React Native, Errors from Formik-Yup validation is not displaying
            Lines of Code : 6dot img8License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            Yup.object().shape({title: Yup.string().required("Please Insert")});
            setFieldValues(fieldName,value) //Definitely From Formik props
            How to reset a react-select single-input with Formik with reset button
            Lines of Code : 49dot img9License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
                        handleSubmit(values, actions);
                      {({ isSubmitting }) => (
                          //...Other Formik components
            How to make the Formik call a function when the form is invalid
            Lines of Code : 10dot img10License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
                    // call what you want
                    // call formik handleSubmit after

            Community Discussions


            How to debounce async formik/yup validation, that it will validate when user will stop entering data?
            Asked 2022-Mar-29 at 22:42

            I want to validate user input asynchronously. For example, to check if email already exists, and perform validation while the user typing. To decrease API calls I'd like to debounce API calls with lodash or custom debounce function and to perform validation when the user stops typing.

            So far this is my form right now. The issue is that it doesn't work as intended. It looks that denounced function returns a value from the previous call, and I can't understand where is the problem.

            You can see a live example here:



            Answered 2021-Nov-10 at 15:42

            It looks that denounced function returns a value from the previous call

            This is how lodash debounce is supposed to work:

            Subsequent calls to the debounced function return the result of the last func invocation.


            You could set validateOnChange to false and then call formik.validateForm manually as a side effect:



            How to mock the formik useFormikContext hook when writing unit tests with jest
            Asked 2022-Mar-20 at 10:42

            I have a simple component see below, that basically attempts to grab some data from the formik FormContext using the useFormikContext hook.

            However when attempting to write unit tests for this component it wants me to mock the hook which is fine, however, mocking the hook with typescript means returning well over 20 properties most of which are a variety of methods and functions.

            Has anyone found a better way of doing this? Just seems a bit annoying even if I get it to work as I only need 1 field from the hook.




            Answered 2021-Dec-22 at 13:29

            I resolved this issue not 100% sure it is the best solution but have posted here in case it helps anyone with a similar issue.

            I basically overwrote the FormikType allowing me to ignore all of the fields and methods I wasn't using, it clearly has some drawbacks as it is removing the type-safety, but I figured since it was only inside the unit test it is somewhat okay.




            How to set Formik InitialValues if field name is coming in props?
            Asked 2022-Mar-07 at 13:57

            I have to set Formik to something like



            Answered 2022-Mar-07 at 13:57


            Why dynamic values are not being submitted from form with NextJS?
            Asked 2022-Feb-25 at 15:24

            I'm working on React based on NextJS code.

            If I manually enter values in form fields and submit the form, I get all the values in the component function.

            But if I dynamically display values in a form field like value={query.campaignid}, the component does not collect any value.



            Answered 2022-Feb-25 at 15:24


            I passed the URL query to initialValues and added enableReinitialize={true} below:



            (Yup) how to create multiple errors using a single .test() function
            Asked 2022-Feb-10 at 11:37

            I have one function that validates that neither input field A nor input field B are empty and with the way my form is built I have to write only one function to check both. (The actual function is much more complicated so I opted to create the example function below)

            this is my test function:



            Answered 2022-Feb-10 at 11:37

            You can use ValidationError from Yup to achieve this goal. The constructor of ValidationError accepts array of other ValidationError instances. The individual ValidationError instances are capable of holding path and error message and the parent instance will combine them.

            Here's the example test function:



            React slick compatibility with Nextjs
            Asked 2022-Jan-29 at 13:37

            I am planning to add React-slick library into my nextjs project for image slider, but getting an issue

            Tries installing "react-slick" and "slick-carousel" as mentioned in the docs by



            Answered 2021-Sep-22 at 23:05

            Just removed the tilde prefix



            proxy server working in one case and failed in another case
            Asked 2022-Jan-23 at 14:57

            So i am working on eCommerce website in react and Node. coming to the point, at the time of login the proxy works totally fine but when i made get request to API it shows an error. I spent 2 days resolving this but at last came here with the hope to get the answer.

            My server.js file



            Answered 2022-Jan-23 at 14:57

            After hours of exploring the internet i couldn't get the answer of my problem, but debugging the code i found the problem. Actually it was one extra trailing slash in URL which made it to misbehave. I was like this before.

            The correct version will be.

            EXTRA NOTE: All those who have not found the solution from here should move forward to this link and look for trailing slash if found in your current URL, for making successful proxy you need to eliminate that trailing slash at the end of URL.



            how to create regex for (-) not repeat after 3 digit inside formik setfieldvalue
            Asked 2022-Jan-11 at 23:22

            i have regex function like this:



            Answered 2022-Jan-11 at 23:22

            Replace beforehand all occurrences of hyphen "-" with "" (empty string)



            Unselect MUI Multi select with initial value
            Asked 2022-Jan-11 at 11:34

            I got a problem with MUI Select (multiple) inside a Formik form. Suppose that I have a task stored in database with taskName, assignTo (array of staff). Now I'm trying to make a form where I can update/change assignTo values. So the form got initialValues with:



            Answered 2022-Jan-11 at 11:30

            From the Select API page(value prop):


            If the value is an object it must have reference equality with the option in order to be selected. If the value is not an object, the string representation must match with the string representation of the option in order to be selected.

            savedTask.assignTo and personList have different object references even if they have the same value, so you have to use Array.filter to have the initial value of assignTo from personList like this:



            how to remove whitespace from password validation in react
            Asked 2021-Dec-21 at 05:41

            In password field if I give "Password@345" its accepted and right but if I give "Password @ 345" its also accepted but its should not accepted because condition is there is no whitespace, how to remove the whitespace that if I type password with whitespace it should give error.



            Answered 2021-Dec-21 at 05:38

            By using yup you can define multiple match on your schema, so in your issue, you can define a separate match to check if password contains space or not and then apply other validation terms. like below example:


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install formik

            You can download it from GitHub.


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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            npm i formik

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