Merge pull request #29 from jwetzell/esm-and-cjs

add support for bundling both esm and cjs versions

packages/osc/package.json

@@ -2,11 +2,22 @@
   "name": "@jwetzell/osc",
   "version": "1.5.0",
   "description": "",
-  "main": "dist/index.js",
-  "types": "dist/index.d.ts",
+  "main": "./dist/cjs/index.js",
+  "module": "./dist/esm/index.js",
+  "types": "./dist/types/index.d.ts",
+  "exports": {
+    ".": {
+      "import": "./dist/esm/index.js",
+      "require": "./dist/cjs/index.js",
+      "types": "./dist/types/index.d.ts"
+    }
+  },
   "scripts": {
     "prebuild": "rimraf dist",
-    "build": "tsc",
+    "build": "npm run build:cjs && npm run build:esm && npm run build:types",
+    "build:cjs": "tsc -p tsconfig.cjs.json",
+    "build:esm": "tsc -p tsconfig.esm.json",
+    "build:types": "tsc -p tsconfig.types.json",
     "prepublishOnly": "npm run build",
     "pretest": "npm run build",
     "test": "node --test --experimental-test-coverage"