Added tsconfig.json. Modified eslint config

Author: nobrayner

.eslintrc

@@ -1,10 +1,15 @@
 {
-  "extends": "./node_modules/kcd-scripts/eslint.js",
+  "extends": [
+    "./node_modules/kcd-scripts/eslint.js",
+    "plugin:@typescript-eslint/recommended"
+  ],
   "rules": {
     "max-lines-per-function": "off",
     "no-constant-condition": "off",
     "no-await-in-loop": "off",
     "react-hooks/rules-of-hooks": "off",
-    "no-console": "off"
-  }
-}
+    "no-console": "off",
+    "no-use-before-define": "off",
+    "@typescript-eslint/no-use-before-define": "warn"
+  },
+}

jest.config.js

@@ -1,3 +1,4 @@
+// eslint-disable-next-line
 const { jest: jestConfig } = require('kcd-scripts/config')
 
 module.exports = Object.assign(jestConfig, {

package.json

@@ -40,6 +40,8 @@
     "@types/testing-library__react-hooks": "^3.4.0"
   },
   "devDependencies": {
+    "@typescript-eslint/eslint-plugin": "^4.9.1",
+    "@typescript-eslint/parser": "^4.9.1",
     "all-contributors-cli": "6.19.0",
     "codecov": "3.8.1",
     "docz": "2.3.1",

test/autoCleanup.disabled.js

@@ -8,6 +8,7 @@ describe('skip auto cleanup (disabled) tests', () => {
 
   beforeAll(() => {
     process.env.RHTL_SKIP_AUTO_CLEANUP = 'true'
+    // eslint-disable-next-line
     renderHook = require('../src').renderHook
   })
 

test/autoCleanup.noAfterEach.js

@@ -9,6 +9,7 @@ describe('skip auto cleanup (no afterEach) tests', () => {
   beforeAll(() => {
     // eslint-disable-next-line no-global-assign
     afterEach = false
+    // eslint-disable-next-line
     renderHook = require('../').renderHook
   })
 

tsconfig.json

@@ -0,0 +1,6 @@
+{
+  "extends": "./node_modules/kcd-scripts/shared-tsconfig.json",
+  "compilerOptions": {
+    "allowJs": true
+  }
+}