Work only <Formik children/> as ReactNode. If you use <Formik component/> or <Formik children/> as function, formik run re-render after any change filed.

Formik - https://codesandbox.io/s/formik-rerender-test-v8gw7x
Formik2nd - https://codesandbox.io/s/formik2nd-rerender-test-forked-mlwvqr

FormikState used to be included in FormikProps. Now FormikState is in the state properties of FormikProps.

Difference between FastField and Field, FastField is only re-render after formik state change by its name.

Because now Formik without FormikProvider don't work.

ErrorMessage, Field, FieldArray, Formik.

##Forked from jaredpalmer/formik

• TSDX - Zero-config CLI for TypeScript used by this repo. (Formik's Rollup configuration as a CLI)

MIT License.