switch to ESM

Author: Kaciras

.github/workflows/test.yml

@@ -13,13 +13,15 @@ jobs:
         with:
           node-version: latest
 
-      - uses: pnpm/action-setup@v2
+      - uses: pnpm/action-setup@v3
         with:
           version: 8
           run_install: true
 
       - run: pnpm test -- --coverage
+        env:
+          NODE_OPTIONS: --experimental-vm-modules
 
       - run: pnpm run type-coverage
 
-      - uses: codecov/codecov-action@v3
+      - uses: codecov/codecov-action@v4

jest.config.js

@@ -1,7 +1,7 @@
-module.exports = {
+export default {
 	coverageDirectory: "coverage",
 	coverageProvider: "v8",
-	preset: "ts-jest",
+	preset: "ts-jest/presets/default-esm",
 	clearMocks: true,
 	testMatch: ["<rootDir>/index.spec.ts"],
 };

package.json

@@ -18,6 +18,7 @@
 		"index.js",
 		"index.d.ts"
 	],
+	"type": "module",
 	"main": "index.js",
 	"types": "index.d.ts",
 	"typeCoverage": {

tsconfig.json

@@ -1,7 +1,7 @@
 {
 	"compilerOptions": {
 		"target": "ESNext",
-		"module": "CommonJS",
+		"module": "ESNext",
 		"moduleResolution": "Node",
 		"lib": ["ESNext"],
 		"declaration": true,