Javascript 执行aync等待功能所用的日志时间

如何计算此函数执行所需的时间

export async function queryElasticSearch(userQuery, index) {
    if (_.isEmpty(userQuery)) {
        throw new Error('User query is empty or null');
    }
    try {
        const elasticSearchRequestBody = getElasticSearchRequestBody(index, userQuery);
        return await elasticSearchClient.search(elasticSearchRequestBody);
    } catch (err) {
        throw err;
    }
}

大概是这样的：

export async function queryElasticSearch(userQuery, index) {
  const start = Date.now()
  try {
    if (_.isEmpty(userQuery)) throw new Error('User query is empty or null');
    const elasticSearchRequestBody = getElasticSearchRequestBody(index, userQuery);
    return await elasticSearchClient.search(elasticSearchRequestBody);
  } finally {
    console.log(Date.now() - start)
  }
}

或者，您也可以使用performance.now（）以微秒为单位的精度

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编辑：根据Bergi的建议最后添加。

您也可以使用

控制台实现此功能。时间

ie

    export async function queryElasticSearch(userQuery, index) {
  console.time('time');
  try {
    if (_.isEmpty(userQuery)) throw new Error('User query is empty or null');
    const elasticSearchRequestBody = getElasticSearchRequestBody(index, userQuery);
    return await elasticSearchClient.search(elasticSearchRequestBody);
  } finally {
    console.timeEnd('time')
  }
}

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catch（err）{throw err；}

毫无意义。只需放下整个

try

包装器。看看你应该使用

finally

来获取结束时间戳