1/* 2 * Copyright (c) 2024-2025 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 function foo(...p: number[][]): number[] { 17 let res: number[] = [] 18 for (let el of p) res = [...res, ...el] 19 return res 20 } 21 22 function sum(...p: number[]): number { 23 let res = 0.0 24 for (let el of p) res += el 25 return res 26 } 27 28 function main() { 29 // spread of arrays, flatten array 30 let a1: number[][] = [[1.0, 2.0], [3.0, 4.0]] 31 let a2: number[][] = [[5.0, 6.0], []] 32 assertEQ(sum(...[...foo(...a1), ...foo(...a2)]), 21.0) 33 }