Validation function

const ERROR_MESSAGES = {
    requried:'Required', 
    short: 'Too short',
    long: 'Too long'
};
const formConfig = {
  title: {
    type: 'text',
    requried: true,
    minLength: 3
  },
  text: {
    type: 'text'
  }
};
const errorFields = {};
const validate = (fields)=> {
    Object.keys(fields).forEach((key, idx) => {
      const value = fields[key];
      if (!!formConfig[key].requried && !value.length) {
        errorFields[key] = [...errorFields[key], ERROR_MESSAGES.requried]; 
      }
      if (!!formConfig[key].minLength && value.length <= formConfig[key].minLength)  {
        errorFields[key] = [...errorFields[key], ERROR_MESSAGES.short]; 
      }
      if (!!formConfig[key].maxLength && value.length > formConfig[key].maxLength) {
        errorFields[key] = [...errorFields[key], ERROR_MESSAGES.long]; 
      }
    });
    // return errorFields;
    console.log(errorFields);
    return !Boolean(Object.values(errorFields).filter(errors => errors.length).length);
};
const fields = ({title: '', text: 'aaaaaaa'});
Object.keys(formConfig).forEach(key => errorFields[key] = []);
const result = validate(fields);
console.log({result});