-
Use the
useState()hook to create a state variable for the values in the form. -
Create a function that will be called with an appropriate event by a form field and update the state variable accordingly.
const useForm = initialValues => {
const [values, setValues] = React.useState(initialValues);
return [
values,
e => {
setValues({
...values,
[e.target.name]: e.target.value
});
}
];
};
###Example Usage:
const Form = () => {
const initialState = { email: '', password: '' };
const [values, setValues] = useForm(initialState);
const handleSubmit = e => {
e.preventDefault();
console.log(values);
};
return (
<form onSubmit={handleSubmit}>
<input type="email" name="email" onChange={setValues} />
<input type="password" name="password" onChange={setValues} />
<button type="submit">Submit</button>
</form>
);
};