[SignalR TS] Fix 'implicit any index' errors (#34187)

Author: BrennanConroy

src/SignalR/clients/ts/signalr/src/HttpConnection.ts

@@ -305,7 +305,7 @@ export class HttpConnection implements IConnection {
     }
 
     private async _getNegotiationResponse(url: string): Promise<INegotiateResponse> {
-        const headers = {};
+        const headers: {[k: string]: string} = {};
         if (this._accessTokenFactory) {
             const token = await this._accessTokenFactory();
             if (token) {

src/SignalR/clients/ts/signalr/src/HubConnectionBuilder.ts

@@ -13,7 +13,7 @@ import { JsonHubProtocol } from "./JsonHubProtocol";
 import { NullLogger } from "./Loggers";
 import { Arg, ConsoleLogger } from "./Utils";
 
-const LogLevelNameMapping = {
+const LogLevelNameMapping: {[k: string]: LogLevel} = {
     trace: LogLevel.Trace,
     debug: LogLevel.Debug,
     info: LogLevel.Information,

src/SignalR/clients/ts/signalr/src/LongPollingTransport.ts

@@ -201,7 +201,7 @@ export class LongPollingTransport implements ITransport {
             // Send DELETE to clean up long polling on the server
             this._logger.log(LogLevel.Trace, `(LongPolling transport) sending DELETE request to ${this._url}.`);
 
-            const headers = {};
+            const headers: {[k: string]: string} = {};
             const [name, value] = getUserAgentHeader();
             headers[name] = value;
 

src/SignalR/clients/ts/signalr/src/Utils.ts

@@ -92,7 +92,7 @@ export function isArrayBuffer(val: any): val is ArrayBuffer {
 /** @private */
 export async function sendMessage(logger: ILogger, transportName: string, httpClient: HttpClient, url: string, accessTokenFactory: (() => string | Promise<string>) | undefined,
                                   content: string | ArrayBuffer, logMessageContent: boolean, withCredentials: boolean, defaultHeaders: MessageHeaders): Promise<void> {
-    let headers = {};
+    let headers: {[k: string]: string} = {};
     if (accessTokenFactory) {
         const token = await accessTokenFactory();
         if (token) {

src/SignalR/clients/ts/signalr/src/WebSocketTransport.ts

@@ -55,7 +55,7 @@ export class WebSocketTransport implements ITransport {
             let opened = false;
 
             if (Platform.isNode) {
-                const headers = {};
+                const headers: {[k: string]: string} = {};
                 const [name, value] = getUserAgentHeader();
                 headers[name] = value;
 

src/SignalR/clients/ts/tsconfig.base.json

@@ -12,7 +12,7 @@
         "noImplicitAny": true,
         "noUnusedLocals": true,
         "noUnusedParameters": true,
-        "suppressImplicitAnyIndexErrors": true,
+        "suppressImplicitAnyIndexErrors": false,
         "noEmitOnError": true,
         "skipLibCheck": true,
         "stripInternal": true,