fix: typescript3.9 error

Author: myNameIsDu

package.json

@@ -110,7 +110,7 @@
     "rollup": "^2.32.1",
     "rollup-plugin-terser": "^7.0.2",
     "ts-jest": "26.5.6",
-    "typescript": "^4.3.4"
+    "typescript": "3.9"
   },
   "browserify": {
     "transform": [

test/hooks/useSelector.spec.tsx

@@ -57,7 +57,8 @@ describe('React', () => {
         })
 
         it('selects the state and renders the component when the store updates', () => {
-          const selector: jest.Mock<number, [s: NormalStateType]> = jest.fn(
+          type MockParams = [NormalStateType]
+          const selector: jest.Mock<number, MockParams> = jest.fn(
             (s) => s.count
           )
 

yarn.lock

@@ -14537,7 +14537,7 @@ __metadata:
     rollup: ^2.32.1
     rollup-plugin-terser: ^7.0.2
     ts-jest: 26.5.6
-    typescript: ^4.3.4
+    typescript: 3.9
   peerDependencies:
     react: ^16.8.3 || ^17
   peerDependenciesMeta:
@@ -17084,7 +17084,17 @@ __metadata:
   languageName: node
   linkType: hard
 
-"typescript@npm:^4.3.4, typescript@npm:~4.3.2":
+"typescript@npm:3.9":
+  version: 3.9.10
+  resolution: "typescript@npm:3.9.10"
+  bin:
+    tsc: bin/tsc
+    tsserver: bin/tsserver
+  checksum: 544f3810ac3d3fcd141907e7f52f0b8c70af178adc83af47e2b8a48351e5a119919a4d3bfbe2f62d5165b5aa203e896fe0432024cfbda670dbd03a4f53ce7748
+  languageName: node
+  linkType: hard
+
+"typescript@npm:~4.3.2":
   version: 4.3.5
   resolution: "typescript@npm:4.3.5"
   bin: