I have a component called <FormComponent/> and it includes the method named onSubmit.

      const FormComponent = () => {
          const [input, setInput] = useState('')
          const onSubmit = () => {do somthing}
           <form>
            <input type="text" placehold="fullName" name="full name" value={input} onChange={setInput(e.target.value)}/>
           </form>
        }

    const app = () => {
       return (
        <FormComponent /> 
        <button type="submit">Submit</button>
       )
    }

now I want when clicking on the button which inside App component, the onSubmit method inside the FormComponent to be executed