/* * Copyright (c) 2023 Huawei Device Co., Ltd. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* * @tc.name:findIndex * @tc.desc:test array.findIndex * @tc.type: FUNC * @tc.require: */ const array1 = [5, 12, 8, 130, 44]; const isLargeNumber = (element) => element > 13; print(array1.findIndex(isLargeNumber)); const arrayLike = { length: 3, 0: 2, 1: 7.3, 2: 4, }; print(Array.prototype.findIndex.call(arrayLike, (x) => !Number.isInteger(x))); print([1, , 3].findIndex((x) => x === undefined)); function isPrime(element) { if (element % 2 === 0 || element < 2) { return false; } for (let factor = 3; factor <= Math.sqrt(element); factor += 2) { if (element % factor === 0) { return false; } } return true; } print([4, 6, 8, 9, 12].findIndex(isPrime)); print([4, 6, 7, 9, 12].findIndex(isPrime)); const words = ["spray", "limit", "limits"]; const deleteWords = words.findIndex((word, index, arr) => { arr.length=2 return word == "limits" }); print(deleteWords); print(words.length); var array = ["first", "second"]; Object.defineProperty(array, 0, { get: function() { array.length = 0; return "first"; } }); const hasFirst = (element) => element == "first"; print(array.findIndex(hasFirst));