模块没有导出成员'AWS'

Question

有人可以帮我理解命名空间和模块的不同之处吗？

AWS.d.ts

public async Task<bool> EnsureAuthenticated()
{
    return IsAuthenticated || (await Authenticate()).IsSuccess;
}

helper.d.ts

declare module AWS {
  ...
  ...
}
export = AWS

app.component.d.ts

export declare namespace Helpers{
  ...
  ...
}

错误：

  

错误   /Users/ishandutta2007/Documents/Projects/myproj/src/app/app.component.ts   （1,9）：模块'“/ Users / is   handutta2007 /文件/项目/的Myproj / node_modules / AWS-SDK /分型/ AWS“”   没有导出的成员'AWS'。）

Answer 1

添加节点定义文件的引用路径并使用* as做了诀窍

app.component.d.ts

/// <reference path="../../node_modules/@types/node/index.d.ts"/>
import * as AWS from 'aws-sdk';

Answer 2

我相信aws-sdk没有默认导出的原因是因为他们希望开发人员仅导入所需的软件包。例如

import { s3 } from 'aws-sdk';

Answer 3

1. 您有一个拼写错误：modeule而不是module
2. 好像你不能导出整个模块。见https://www.typescriptlang.org/docs/handbook/modules.html https://www.typescriptlang.org/docs/handbook/namespaces-and-modules.html

Answer 4

问题已于 Github: node_modules/aws-sdk/index has no default export #2654

解决

从 SELECT xmi.memberid, xmi.value min_record_value, xma.value max_record_value FROM (SELECT v1.memberid, v1.value, row_number() OVER (PARTITION BY v1.memberid ORDER BY v1.submit_datetime ASC, v1.id ASC) rn FROM membervalues v1) xmi INNER JOIN (SELECT v2.memberid, v2.value, row_number() OVER (PARTITION BY v2.memberid ORDER BY v2.submit_datetime DESC, v2.id DESC) rn FROM membervalues v2) xma ON xma.memberid = xmi.memberid AND xma.rn = xmi.rn WHERE xma.rn = 1 AND xmi.rn = 1; 导入要使用的模块而不是 AWS

Javascript 示例：

aws-sdk

打字稿：

const aws = require('aws-sdk')
let s3 = new aws.S3();