我目前正在尝试使用TypeScript和WorkBox创建Service Worker。以下是我当前的WorkBox定义(只是为了解决问题)。我该如何解决以下解释的类型错误?
在registerRoute
段中,TypeScript编译器告诉matchPrecache
需要两个参数,另一个为HeadersInit
类型。如果未指定,则默认为Content-Type: text/html
。我想给出明确的类型并给出类型,但是当我这样做时,出现错误matchPrecache
返回值不可分配。
如果我勾选strategy.d.ts,看起来像这样
/**
* A shortcut to create a strategy that could be dropped-in to Workbox's router.
*
* On browsers that do not support constructing new `ReadableStream`s, this
* strategy will automatically wait for all the `sourceFunctions` to complete,
* and create a final response that concatenates their values together.
*
* @param {Array<function({event, request, url, params})>} sourceFunctions
* An array of functions similar to {@link module:workbox-routing~handlerCallback}
* but that instead return a {@link module:workbox-streams.StreamSource} (or a
* Promise which resolves to one).
* @param {HeadersInit} [headersInit] If there's no `Content-Type` specified,
* `'text/html'` will be used by default.
* @return {module:workbox-routing~handlerCallback}
* @memberof module:workbox-streams
*/
declare function strategy(sourceFunctions: StreamsHandlerCallback[], headersInit: HeadersInit): RouteHandlerCallback;
export { strategy };
import { clientsClaim, skipWaiting } from 'workbox-core';
import { strategy as streamsStrategy } from 'workbox-streams';
import { cleanupOutdatedCaches, matchPrecache, precacheAndRoute } from "workbox-precaching";
import { registerRoute } from "workbox-routing";
declare const self: any;
self.addEventListener("message", (event: { data: any; type: any; ports: any }) => {
if (event.data && event.data.type === "SKIP_WAITING") {
self.skipWaiting();
}
});
precacheAndRoute(self.__WB_MANIFEST);
cleanupOutdatedCaches();
const requestHeaders: HeadersInit =
{
"Content-Type": "text/html"
}
registerRoute(
'/', streamsStrategy([() => matchPrecache("index.html")], requestHeaders)
);
skipWaiting();
clientsClaim();
编辑:好的!当我不仅查看VS Code错误而且尝试构建时,我在命令行中发现了许多其他错误。一长段文字
node_modules/typescript/lib/lib.dom.d.ts:25:1 - error TS6200: Definitions of the following
identifiers conflict with those in another file: EventListenerOrEventListenerObject,
ImportExportKind, TableKind, ValueType,
ExportValue, Exports, ImportValue, ModuleImports,
Imports, name, ==> HeadersInit <==, BodyInit, RequestInfo, BlobPart, DOMHighResTimeStamp, CanvasImageSource, OffscreenRenderingContext, MessageEventSource,
ImageBitmapSource, OnErrorEventHandler, TimerHandler, PerformanceEntryList, ReadableStreamReadResult, VibratePattern, AlgorithmIdentifier, HashAlgorithmIdentifier, BigInteger, NamedCurve,
GLenum, GLboolean, GLbitfield, GLint, GLsizei, GLintptr, GLsizeiptr, GLuint, GLfloat, GLclampf, TexImageSource, Float32List, Int32List, GLint64, GLuint64, Uint32List, BufferSource, DOMTimeStamp,
FormDataEntryValue, IDBValidKey, Transferable, BinaryType, CanvasDirection, CanvasFillRule, CanvasLineCap, CanvasLineJoin, CanvasTextAlign, CanvasTextBaseline, ClientTypes, ColorSpaceConversion, EndingType, IDBCursorDirection, IDBRequestReadyState, IDBTransactionMode, ImageOrientation, ImageSmoothingQuality, KeyFormat, KeyType, KeyUsage, NotificationDirection, NotificationPermission, OffscreenRenderingContextId, PermissionName, PermissionState, PremultiplyAlpha, PushEncryptionKeyName, PushPermissionState, ReferrerPolicy, RequestCache, RequestCredentials, RequestDestination, RequestMode, RequestRedirect, ResizeQuality, ResponseType, ServiceWorkerState, ServiceWorkerUpdateViaCache, VisibilityState, WebGLPowerPreference, WorkerType, XMLHttpRequestResponseType
我试图强调其中之一是这个有问题的HeadersInit
。我的tsconfig.json
如下
{
"compilerOptions": {
"target": "esnext",
"module": "esnext",
"moduleResolution": "node",
"noEmitOnError": true,
"lib": ["esnext", "dom"],
"strict": true,
"esModuleInterop": false,
"allowSyntheticDefaultImports": true,
"experimentalDecorators": true,
"importHelpers": true,
"outDir": "out-tsc",
"sourceMap": true,
"inlineSources": true,
"forceConsistentCasingInFileNames": true,
"removeComments": true,
"rootDir": "./"
},
"include": ["**/*.ts"]
}
并且在我的package.json
中
"@types/workbox-sw": "^4.3.1",
"@types/workbox-window": "^4.3.3",
所以也许这与此有关。
编辑2:仅当我放入
/// <reference lib="webworker" />
位于文件顶部。删除后,我遇到与WorkBox issue #2584中所述的相同问题(就错误消息而言)。
编辑3:我删除了显式引用,找到了WorkBox issue #2172,并尝试将此库添加到tsconfig.json
中,现在又出现了很多有关{之间的类型冲突的消息{1}}和dom
库定义。
编辑4:我注意到https://github.com/microsoft/TypeScript/issues/20595,因此也TypeScript: Declare Different Libraries/References for Different Files Within the Same Project注意到TypeScript webworker
和dom
库冲突。从webworker
中删除webworker
似乎无法解决tsconfig.json
和streamsStrategy
的原始问题。
答案 0 :(得分:2)
尝试为服务工作者创建单独的文件夹,并为此文件夹扩展主要tsconfig.json。 为此,您需要使用serviceworker.ts在文件夹中创建另一个tsconfig.json,其中包含下一个内容:
ReactFragment
而且,我希望您知道服务工作者必须作为Webworker进行编译以分离文件。 您可以提供项目链接吗?