angular - 如何将 core-js Map 导入 angular-cli webpack 生成的应用程序

Question

^1.0.0-beta.11-webpack" 现在将 core-js 用于 polyfill。

我正在尝试导入地图以在我的应用程序中使用

import {Map} from 'core-js/es6/map'
//import {Map} from 'core-js/library/es6/map'

export function updatePayload(data: any, isDataValid: boolean): Map<string, any> {
  const payload: Map<string, any> = new Map<string, any>()
  payload.set('data', data)
  payload.set('isDataValid', isDataValid)
  return payload
}

我什至使用添加了 core-js d.ts 文件

npm install --save @types/core-js (typescript 2.0 is used)

但是两个导入都没有解析 Map 符号。

我错过了什么？

编辑 1 | 产生的错误

我现在可以使用 Map 实体，但我在 cosole 中遇到很多错误，即使我可以设置/获取地图键/值

client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:21:13 
Duplicate identifier 'PropertyKey'.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:58:4 
All declarations of 'name' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:118:4 
Subsequent variable declarations must have the same type.  Variable '[Symbol.unscopables]' must be of type '{ copyWithin: boolean; entries: boolean; fill: boolean; find: boolean; findIndex: boolean; keys: ...', but here has type 'any'.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:235:4 
All declarations of 'flags' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:249:4 
All declarations of 'EPSILON' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:284:4 
All declarations of 'MAX_SAFE_INTEGER' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:291:4 
All declarations of 'MIN_SAFE_INTEGER' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:430:4 
Subsequent variable declarations must have the same type.  Variable '[Symbol.toStringTag]' must be of type '"Symbol"', but here has type 'string'.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:430:4 
All declarations of '[Symbol.toStringTag]' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:437:4 
All declarations of 'prototype' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:465:4 
All declarations of 'hasInstance' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:471:4 
All declarations of 'isConcatSpreadable' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:477:4 
All declarations of 'iterator' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:483:4 
All declarations of 'match' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:489:4 
All declarations of 'replace' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:495:4 
All declarations of 'search' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:501:4 
All declarations of 'species' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:507:4 
All declarations of 'split' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:513:4 
All declarations of 'toPrimitive' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:519:4 
All declarations of 'toStringTag' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:525:4 
All declarations of 'unscopables' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:582:4 
Subsequent variable declarations must have the same type.  Variable '[Symbol.toStringTag]' must be of type '"Math"', but here has type 'string'.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:582:4 
All declarations of '[Symbol.toStringTag]' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:586:4 
Subsequent variable declarations must have the same type.  Variable '[Symbol.toStringTag]' must be of type '"JSON"', but here has type 'string'.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:586:4 
All declarations of '[Symbol.toStringTag]' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:601:4 
All declarations of 'size' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:607:4 
All declarations of 'prototype' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:618:4 
All declarations of 'size' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:624:4 
All declarations of 'prototype' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:639:4 
All declarations of 'prototype' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:653:4 
All declarations of 'prototype' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:665:4 
All declarations of 'value' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\@types\core-js\index.d.ts:777:4 
All declarations of 'prototype' must have identical modifiers.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
client:49 [default] J:\workspace\angular2\ts\epimss\node_modules\typescript\lib\lib.es2015.core.d.ts:17:13 
Duplicate identifier 'PropertyKey'.errors @ client:49sock.onmessage @ client:83EventTarget.dispatchEvent @ eventtarget.js:51(anonymous function) @ main.js:274SockJS._transportMessage @ main.js:272EventEmitter.emit @ emitter.js:50WebSocketTransport.ws.onmessage @ websocket.js:35wrapFn @ zone.js:769ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423

Answer 1

这里的问题是core-js重新声明 TypeScript 本身默认提供和包含的许多类型的声明。

core-js旨在填充 ECMAScript 标准库的当前和未来规范。TypeScript 旨在描述那些相同的当前和未来规范的类型。

因此，可用的类型声明core-js与该语言提供的类型声明重叠。

您可以使用一些可靠的选项：

1. "noLib": true在tsconfig.json 中指定"compilerOptions"指示 TypeScript 避免在编译上下文中自动包含其内置的标准库声明。
2. 在 tsconfig.json 中指定"lib"选项，让您更精细地控制包含哪些标准库声明。例如，您可以指定"lib": ["es2017.symbol.wellknown", "dom"].
3. 卸载 @types/core-js 包并简单地使用 TypeScript 的内置声明文件，如上指定"lib": ["es2017", "dom"]. 您将继续使用core-js，但您将使用 TypeScript 自己维护良好的定义来键入实现。

在我自己花了一些时间在这些选项之间来回切换之后，我发现选项 3 是最容易维护的。

请注意，TypeScript 自动包含的声明文件取决于"target"tsconfig.xml 中的属性。