chore: add tsconfig.json to basic example (#4372)

Co-authored-by: Vladimir <sleuths.slews0s@icloud.com>

examples/basic/src/basic.ts

@@ -0,0 +1 @@
+export const squared = (n: number) => n * n

examples/basic/test/basic.test.ts

@@ -1,4 +1,5 @@
 import { assert, expect, test } from 'vitest'
+import { squared } from '../src/basic.js'
 
 // Edit an assertion and save to see HMR in action
 
@@ -8,6 +9,11 @@ test('Math.sqrt()', () => {
   expect(Math.sqrt(2)).toBe(Math.SQRT2)
 })
 
+test('Squared', () => {
+  expect(squared(2)).toBe(4)
+  expect(squared(12)).toBe(144)
+})
+
 test('JSON', () => {
   const input = {
     foo: 'hello',

examples/basic/tsconfig.json

@@ -0,0 +1,13 @@
+{
+  "compilerOptions": {
+    "module": "node16",
+    "target": "es2020",
+    "strict": true,
+    "verbatimModuleSyntax": true,
+    "declaration": true,
+    "sourceMap": true,
+    "declarationMap": true
+  },
+  "include": ["src", "test"],
+  "exclude": ["node_modules"]
+}