Function beforeSubmit

src/FinalForm.ts:746–751

()

  };

  const beforeSubmit = (): boolean =>
    Object.keys(state.fields).some(
      (name) =>
        state.fields[name].beforeSubmit &&
        state.fields[name].beforeSubmit() === false,
    );

  const afterSubmit = (): void =>
    Object.keys(state.fields).forEach(