[ReactJS] Form validation function

validateForm.js

const validateForm = (formFields, formState) => {
    let errors = [];
    let allowedToProceed = true;

    //All required fields are empty
    if (!formState) {
      for (let field of formFields) {
        errors.push(field);
      }
      setFormErrors(errors);
      return false;
    }

    for (let field of formFields) {
      //Error found. Block.
      if (!formState[field]) {
        errors.push(field);
        allowedToProceed = false;
      }
    }
    //Update errors
    setFormErrors(errors);
    return allowedToProceed;
  };