16a23e08bSopenharmony_ci/*
26a23e08bSopenharmony_ci * Copyright (c) 2021 Huawei Device Co., Ltd.
36a23e08bSopenharmony_ci * Licensed under the Apache License, Version 2.0 (the "License");
46a23e08bSopenharmony_ci * you may not use this file except in compliance with the License.
56a23e08bSopenharmony_ci * You may obtain a copy of the License at
66a23e08bSopenharmony_ci *
76a23e08bSopenharmony_ci *     http://www.apache.org/licenses/LICENSE-2.0
86a23e08bSopenharmony_ci *
96a23e08bSopenharmony_ci * Unless required by applicable law or agreed to in writing, software
106a23e08bSopenharmony_ci * distributed under the License is distributed on an "AS IS" BASIS,
116a23e08bSopenharmony_ci * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
126a23e08bSopenharmony_ci * See the License for the specific language governing permissions and
136a23e08bSopenharmony_ci * limitations under the License.
146a23e08bSopenharmony_ci */
156a23e08bSopenharmony_ci
166a23e08bSopenharmony_ciconst is = (type) => {
176a23e08bSopenharmony_ci  return (source) => Object.prototype.toString.call(source) === `[object ${type}]`;
186a23e08bSopenharmony_ci};
196a23e08bSopenharmony_ci
206a23e08bSopenharmony_ciexports.isFunction = is('Function');
216a23e08bSopenharmony_ciexports.isUndefined = is('Undefined');
226a23e08bSopenharmony_ciexports.isObject = is('Object');
236a23e08bSopenharmony_ciexports.isArray = is('Array');
246a23e08bSopenharmony_ciexports.isNull = is('Null');
25