Why can't I read Dropdown values by Formik in React? - reactjs

Question

I am using Formik and Yup for a form control in react application. I use also Semantic UI. In the application, when I click the submit button, whereas I can read the values from FormField elements and see them on Console, I can not get the values from Dropdown elements and they appear blank on Console. How can I solve this out?
return (
<div>
<Card fluid>
<Card.Content>
<Card.Header>Create A New Job Ad</Card.Header>
<Divider inverted />
<Formik
initialValues={initialValues}
validationSchema={jobAdCreateSchema}
onSubmit={(values) => {
console.log(values);
}}
>
<Form className="ui form">
<label>Job Title</label>
<FormField>
<Field name="jobTitle" placeholder="Select a Job Title"></Field>
</FormField>
<FormField>
<label>City</label>
<Dropdown
name="city"
placeholder="Select a City"
fluid
selection
options={cityOption}
/>
</FormField>
<FormField>
<Button color="green" type="submit">
Submit
</Button>
</FormField>
</Form>
</Formik>
</Card.Content>
</Card>
</div>
);

Answer 1

The issue is with the way the Dropdown component is rendered currently. You need to make use of the setFieldValue provided by Formik to manually update the Formik state.
<Formik
initialValues={{
city: ""
}}
onSubmit={(values) => console.log(values)}
>
{({ values, setFieldValue }) => (
<div>
<pre>{JSON.stringify(values, undefined, 2)}</pre>
<Dropdown
selection
placeholder="Select a City"
options={[
{ value: "NY", text: "New York" },
{ value: "LA", text: "Los Angeles" },
{ value: "SF", text: "San Fransico" }
]}
value={values.city}
onChange={(value) => setFieldValue("city", value)}
/>
</div>
)}
</Formik>
Working Sandbox