@ohos.util.List

@ohos.util.List.insert

官方API文档

测试用例 1: 测试List容器insert接口

function test_insert(loopCount: number) {
  let list = new List<number>();
  const startTime = new Date();
  for (let i = 0; i < loopCount; i++) {
    list.insert(0,i);
  }
  const endTime = new Date();
  const executionTime = endTime.getTime() - startTime.getTime();
  const averageTime = executionTime / loopCount;
  console.log(`!${test_id}: ${averageTime} ms`);
}

测试结果

测试用例	测试平台	运行时间
测试用例 1	Huawei Phone	0.036100 ms

@ohos.util.List.has

官方API文档

测试用例 1: 测试在最坏情况下（查找元素不存在的情况）List容器的has接口，List长度为100000

function test_has(loopCount: number) {
  let list = new List<number>();
  for (let i = 0; i < 100000; i++) {
    list.add(i);
  }
  const startTime = new Date();
  for (let i = 0; i < loopCount; i++) {
    list.has(500000);
  }
  const endTime = new Date();
  const executionTime = endTime.getTime() - startTime.getTime();
  const averageTime = executionTime / loopCount;
  console.log(`!${test_id}: ${averageTime} ms`);
}

测试用例 2: 测试在最优情况下（查找元素为第一个）List容器的has接口，List长度为5000000

function test_has2(loopCount: number) {
  let list = new List<number>();
  for (let i = 0; i < 5000000; i++) {
    list.add(i);
  }
  const startTime = new Date();
  for (let i = 0; i < loopCount; i++) {
    list.has(0);
  }
  const endTime = new Date();
  const executionTime = endTime.getTime() - startTime.getTime();
  const averageTime = executionTime / loopCount;
  console.log(`!${test_id}: ${averageTime} ms`);
}

测试结果

测试用例	测试平台	运行时间
测试用例 1	Huawei Phone	0.140000 ms
测试用例 2	Huawei Phone	0.000063 ms

@ohos.util.List.sort

官方API文档

测试用例 1: 测试List容器sort接口

function test_sort(loopCount: number) {
  let list = new List<number>();
  for (let i = loopCount; i > 0; i--) {
    list.add(i);
  }
  const startTime = new Date();
    list.sort((a: number, b: number) => a - b);
  const endTime = new Date();
  const executionTime = endTime.getTime() - startTime.getTime();
  const averageTime = executionTime / loopCount;
  console.log(`!${test_id}: ${averageTime} ms`);
}

测试结果

测试用例	测试平台	运行时间
测试用例 1	Huawei Phone	0.023360 ms

@ohos.util.List.remove

官方API文档

测试用例 1: 测试在最坏情况下（查找元素不存在的情况）List容器的remove接口，List长度为50000

function test_remove(loopCount: number) {
  let list = new List<number>();
  for (let i = 0; i < 50000; i++) {
    list.add(i);
  }
  const startTime = new Date();
  for (let i = 0; i < loopCount; i++) {
    list.remove(50000);
  }
  const endTime = new Date();
  const executionTime = endTime.getTime() - startTime.getTime();
  const averageTime = executionTime / loopCount;
  console.log(`!${test_id}: ${averageTime} ms`);
}

测试用例 2: 测试在最优情况下（查找元素为第一个）List容器的remove接口，List长度为5000000

function test_remove2(loopCount: number) {
  let list = new List<number>();
  for (let i = 0; i < 5000000; i++) {
    list.add(i);
  }
  const startTime = new Date();
  for (let i = 0; i < loopCount; i++) {
    list.remove(i);
  }
  const endTime = new Date();
  const executionTime = endTime.getTime() - startTime.getTime();
  const averageTime = executionTime / loopCount;
  console.log(`!${test_id}: ${averageTime} ms`);
}

测试结果

测试用例	测试平台	运行时间
测试用例 1	Huawei Phone	0.086740 ms
测试用例 2	Huawei Phone	0.000067 ms

@ohos.util.List.add

官方API文档

测试用例 1: 测试List容器add接口

function test_add(loopCount: number) {
  let list = new List<number>();
  const startTime = new Date();
  for (let i = 0; i < loopCount; i++) {
    list.add(1);
  }
  const endTime = new Date();
  const executionTime = endTime.getTime() - startTime.getTime();
  const averageTime = executionTime / loopCount;
  console.log(`!${test_id}: ${averageTime} ms`);
}

测试结果

测试用例	测试平台	运行时间
测试用例 1	Huawei Phone	0.000106 ms