/*
 * Copyright (c) 2026 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.
 */
// [Start localStorage_local_array_sample] 
@Entry
@Component
struct Index {
  @LocalStorageLink('array') message: number[] = [0, 1, 2, 3];

  build() {
    Column() {
      ForEach(this.message, (item: number) => {
        Text(`${item}`)
          .fontSize(20)
          .margin(10)
      })
      // 新增数组元素，触发UI刷新
      Button('Push element')
        .onClick(() => {
          this.message.push(4);
        })
        .width(300)
        .margin(10)
      // 删除数组元素，触发UI刷新
      Button('Pop element')
        .onClick(() => {
          this.message.pop();
        })
        .width(300)
        .margin(10)
      // 对数组整体重新赋值，触发UI刷新
      Button('Reset array')
        .onClick(() => {
          this.message = [9, 8, 7, 6];
        })
        .width(300)
        .margin(10)
      // 更新数组元素，触发UI刷新
      Button('Modify element[0]')
        .onClick(() => {
          this.message[0] = 10;
        })
        .width(300)
        .margin(10)
    }
  }
}
// [End localStorage_local_array_sample]