Fix ESM output for native Node.js usage

Makefile

@@ -1,3 +1,5 @@
+export NODE_OPTIONS := --experimental-vm-modules --redirect-warnings=artifacts/node-warnings
+
 JS_SIZE_LIMIT_REQ += artifacts/dist
 
 ################################################################################

jest.config.js

@@ -3,6 +3,12 @@ import config from "@snout/jest-config";
 export default {
   ...config,
   transform: {
-    "\\.tsx?$": ["ts-jest", { tsconfig: "test/tsconfig.json" }],
+    "^.+\\.tsx?$": [
+      "ts-jest",
+      {
+        useESM: true,
+        tsconfig: "test/tsconfig.json",
+      },
+    ],
   },
 };

package.json

@@ -20,7 +20,11 @@
   "main": "artifacts/dist/index.js",
   "types": "artifacts/dist/index.d.ts",
   "exports": {
-    ".": "./artifacts/dist/index.js"
+    ".": {
+      "types": "./artifacts/dist/index.d.ts",
+      "import": "./artifacts/dist/index.js",
+      "default": "./artifacts/dist/index.js"
+    }
   },
   "sideEffects": false,
   "files": [
@@ -35,20 +39,20 @@
     "size-limit-clean": "rm -rf artifacts/dist"
   },
   "dependencies": {
-    "@snout/regexp": "^0.3.0"
+    "@snout/regexp": "^0.3.2"
   },
   "peerDependencies": {
     "@snout/router-path": "^0.6.0"
   },
   "devDependencies": {
     "@size-limit/preset-small-lib": "^8.0.0",
     "@snout/eslint-config": "^3.2.2",
-    "@snout/jest-config": "^2.1.0",
+    "@snout/jest-config": "^3.0.0",
     "@snout/router-path": "^0.7.2",
-    "@snout/tsconfig": "^2.0.0",
+    "@snout/tsconfig": "^3.0.0",
     "prettier": "^2.7.1",
     "prettier-plugin-organize-imports": "^3.0.0",
     "size-limit": "^8.0.0",
-    "typescript": "^4.4.3"
+    "typescript": "^4.8.4"
   }
 }

src/index.ts

@@ -1,4 +1,4 @@
-export { int } from "./coercion";
-export { optional } from "./optional";
-export { any, some } from "./repeating";
-export { createSlash, slash } from "./slash";
+export { int } from "./coercion.js";
+export { optional } from "./optional.js";
+export { any, some } from "./repeating.js";
+export { createSlash, slash } from "./slash.js";

test/unit/any.spec.ts

@@ -1,5 +1,5 @@
 import { path } from "@snout/router-path";
-import { any } from "../../src/repeating";
+import { any } from "../../src/repeating.js";
 
 describe("any()", () => {
   it("should allow building from an array", () => {

test/unit/index.spec.ts

@@ -1,8 +1,8 @@
-import { int } from "../../src/coercion";
-import * as index from "../../src/index";
-import { optional } from "../../src/optional";
-import { any, some } from "../../src/repeating";
-import { createSlash, slash } from "../../src/slash";
+import { int } from "../../src/coercion.js";
+import * as index from "../../src/index.js";
+import { optional } from "../../src/optional.js";
+import { any, some } from "../../src/repeating.js";
+import { createSlash, slash } from "../../src/slash.js";
 
 describe("module index", () => {
   it("should provide access to int()", () => {

test/unit/int.spec.ts

@@ -1,5 +1,5 @@
 import { path } from "@snout/router-path";
-import { int } from "../../src/coercion";
+import { int } from "../../src/coercion.js";
 
 describe("int()", () => {
   it("should allow building from a number", () => {

test/unit/optional.spec.ts

@@ -1,6 +1,6 @@
 import { normalizeParam, path } from "@snout/router-path";
-import { int } from "../../src/coercion";
-import { optional } from "../../src/optional";
+import { int } from "../../src/coercion.js";
+import { optional } from "../../src/optional.js";
 
 describe("optional()", () => {
   it("should allow building with or without a defined arg", () => {

test/unit/slash.spec.ts

@@ -1,5 +1,5 @@
 import { path } from "@snout/router-path";
-import { createSlash, slash } from "../../src/slash";
+import { createSlash, slash } from "../../src/slash.js";
 
 describe("createSlash()", () => {
   it("should allow building with a boolean indicating whether to include the slash", () => {

test/unit/some.spec.ts

@@ -1,5 +1,5 @@
 import { path } from "@snout/router-path";
-import { some } from "../../src/repeating";
+import { some } from "../../src/repeating.js";
 
 describe("some()", () => {
   it("should allow building from an array", () => {