redux-form/es/hasError.js

A higher order component decorator for forms using Redux and React

var getErrorKeys = function getErrorKeys(name, type) {
  switch (type) {
    case 'Field':
      return [name, name + "._error"];

    case 'FieldArray':
      return [name + "._error"];

    default:
      throw new Error('Unknown field type');
  }
};

export default function createHasError(_ref) {
  var getIn = _ref.getIn;
  return function (field, syncErrors, asyncErrors, submitErrors) {
    if (!syncErrors && !asyncErrors && !submitErrors) {
      return false;
    }

    var name = getIn(field, 'name');
    var type = getIn(field, 'type');
    return getErrorKeys(name, type).some(function (key) {
      return getIn(syncErrors, key) || getIn(asyncErrors, key) || getIn(submitErrors, key);
    });
  };
}