How to skip validation for the field not exists in form using Formik + Yup?

[harleenarora]

I want to add validation if a particular field exists in the form, otherwise, there should not be any validation or skip validation for that field.

How can I achieve this?

[spawluk]

use
object({}).test()

[kaldebert]

You can also use when.
For example, add a required validation on foo if bar is present :

foo: mixed().when("bar", {
    is: value => !!value,
    then: mixed().required()
  }),

[luismasg]

so what i just did

<Formik
onSubmit={actualSubmitFunction}
. .

<button onClick={vales.valueExists? submitForm(): actualSubmitFunction(values)}>submit </button>