13af6ab5fSopenharmony_ci/*
23af6ab5fSopenharmony_ci * Copyright (c) 2023 Huawei Device Co., Ltd.
33af6ab5fSopenharmony_ci * Licensed under the Apache License, Version 2.0 (the "License");
43af6ab5fSopenharmony_ci * you may not use this file except in compliance with the License.
53af6ab5fSopenharmony_ci * You may obtain a copy of the License at
63af6ab5fSopenharmony_ci *
73af6ab5fSopenharmony_ci *     http://www.apache.org/licenses/LICENSE-2.0
83af6ab5fSopenharmony_ci *
93af6ab5fSopenharmony_ci * Unless required by applicable law or agreed to in writing, software
103af6ab5fSopenharmony_ci * distributed under the License is distributed on an "AS IS" BASIS,
113af6ab5fSopenharmony_ci * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
123af6ab5fSopenharmony_ci * See the License for the specific language governing permissions and
133af6ab5fSopenharmony_ci * limitations under the License.
143af6ab5fSopenharmony_ci */
153af6ab5fSopenharmony_ci
163af6ab5fSopenharmony_ciimport assert = require('assert');
173af6ab5fSopenharmony_ci
183af6ab5fSopenharmony_ciinterface StringValidator {
193af6ab5fSopenharmony_ci  isAcceptable(s: string): boolean;
203af6ab5fSopenharmony_ci}
213af6ab5fSopenharmony_ci
223af6ab5fSopenharmony_cilet lettersRegexp = /^[A-Za-z]+$/;
233af6ab5fSopenharmony_cilet numberRegexp = /^[0-9]+$/;
243af6ab5fSopenharmony_ci
253af6ab5fSopenharmony_ciclass LettersOnlyValidator implements StringValidator {
263af6ab5fSopenharmony_ci  isAcceptable(s: string) {
273af6ab5fSopenharmony_ci    return lettersRegexp.test(s);
283af6ab5fSopenharmony_ci  }
293af6ab5fSopenharmony_ci}
303af6ab5fSopenharmony_ci
313af6ab5fSopenharmony_ciclass ZipCodeValidator implements StringValidator {
323af6ab5fSopenharmony_ci  isAcceptable(s: string) {
333af6ab5fSopenharmony_ci    return s.length === 5 && numberRegexp.test(s);
343af6ab5fSopenharmony_ci  }
353af6ab5fSopenharmony_ci}
363af6ab5fSopenharmony_ci
373af6ab5fSopenharmony_ci// Some samples to try
383af6ab5fSopenharmony_cilet strings = ["Hello", "98052", "101"];
393af6ab5fSopenharmony_ci
403af6ab5fSopenharmony_ci// Validators to use
413af6ab5fSopenharmony_cilet validators: { [s: string]: StringValidator; } = {};
423af6ab5fSopenharmony_civalidators["ZIP code"] = new ZipCodeValidator();
433af6ab5fSopenharmony_civalidators["Letters only"] = new LettersOnlyValidator();
443af6ab5fSopenharmony_ci
453af6ab5fSopenharmony_ci
463af6ab5fSopenharmony_ciassert(validators["Letters only"].isAcceptable(strings[0]), 'success');
473af6ab5fSopenharmony_ciassert(validators["ZIP code"].isAcceptable(strings[1]), 'success');
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