feat: make backwards compatible for TS <4.1

Author: artysidorenko

package.json

@@ -75,6 +75,9 @@
       "optional": true
     }
   },
+  "typesVersions": {
+    "<4.1": { "types/*": ["types/ts3.8/*"] }
+  },
   "devDependencies": {
     "@babel/cli": "^7.11.6",
     "@babel/core": "^7.11.6",

src/ts3.8/index.ts

@@ -0,0 +1,4 @@
+import { useQueries } from './useQueries'
+export { useQueries }
+
+export * from '..'

src/ts3.8/useQueries.ts

@@ -0,0 +1,6 @@
+import { UseQueryOptions, UseQueryResult } from '../react/types'
+
+/**
+ * Backwards-compatible definition for TS < 4.1
+ */
+export declare function useQueries(queries: UseQueryOptions[]): UseQueryResult[]

tsconfig.types.json

@@ -16,7 +16,8 @@
     "./src/persistQueryClient-experimental/index.ts",
     "./src/createWebStoragePersistor-experimental/index.ts",
     "./src/createAsyncStoragePersistor-experimental/index.ts",
-    "./src/broadcastQueryClient-experimental/index.ts"
+    "./src/broadcastQueryClient-experimental/index.ts",
+    "./src/ts3.8/index.ts"
   ],
   "exclude": ["./src/**/*"]
 }