gql-typeguards/dist/gql-typeguards.esm.js

GraphQL typeguards functions

function isType(result, typename) {
  return (result == null ? void 0 : result.__typename) === typename;
}
function isEither(result, typenames) {
  var types = typenames == null ? void 0 : typenames.filter(function (type) {
    return isType(result, type);
  });
  return types ? types.length > 0 : false;
}
function isNot(result, typenames) {
  var types = typenames == null ? void 0 : typenames.filter(function (type) {
    return isType(result, type);
  });
  return types ? types.length === 0 : false;
}
function isTypeInTuple(typename) {
  return function (resultItem) {
    return isType(resultItem, typename);
  };
}
function isEitherTypesInTuple(typenames) {
  return function (resultItem) {
    return isEither(resultItem, typenames);
  };
}
function isNotTypesInTuple(typenames) {
  return function (resultItem) {
    return isNot(resultItem, typenames);
  };
}

export { isEither, isEitherTypesInTuple, isNot, isNotTypesInTuple, isType, isTypeInTuple };
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