Merge branch 'testing-esm'

.npmignore

@@ -1,4 +1,6 @@
-examples/
-node_modules/
+.*
+benchmark/
 coverage/
-docs/
+docs/
+examples/
+node_modules/

package.json

@@ -15,13 +15,24 @@
     "preset": "ts-jest"
   },
   "license": "MIT",
-  "version": "2.5.1",
+  "version": "2.6.0-1",
   "directories": {
     "source": "./src",
     "test": "./test"
   },
-  "main": "dist/index.js",
-  "types": "dist/index.d.ts",
+  "main": "dist/cjs/index.js",
+  "module": "dist/esm/index.js",
+  "exports": {
+    ".": {
+      "require": "./dist/cjs/index.js",
+      "import": "./dist/esm/index.js"
+    }
+  },
+  "engines": {
+    "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
+  },
+  "sideEffects": false,
+  "types": "dist/esm/index.d.ts",
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "@typescript-eslint/eslint-plugin": "^4.7.0",
@@ -32,17 +43,25 @@
     "husky": "^4.2.5",
     "jest": "^26.1.0",
     "prettier": "^2.0.5",
+    "run-script-os": "^1.1.6",
     "ts-jest": "^26.1.1",
+    "tsc-esm-fix": "^2.12.4",
     "typedoc": "^0.20.36",
-    "typescript": "~4.2.4"
+    "typescript": "~4.2.4",
+    "rimraf": "^3.0.2"
   },
   "husky": {
     "hooks": {
       "pre-commit": "npm run prettier && npm run test:silent"
     }
   },
   "scripts": {
-    "build": "tsc -p tsconfig.build.json",
+    "build": "rimraf dist && npm run build-cjs && npm run build-esm && npm run add-package.json",
+    "build-cjs": "tsc -p tsconfig.build.json",
+    "build-esm": "tsc -p tsconfig.build.esm.json && tsc-esm-fix --target=dist/esm",
+    "add-package.json": "run-script-os",
+    "add-package.json:nix": "echo '{\"type\":\"commonjs\",\"sideEffects\":\"false\"}' > dist/cjs/package.json && echo '{\"type\":\"module\",\"sideEffects\":\"false\"}' > dist/esm/package.json",
+    "add-package.json:windows": "echo {\"type\":\"commonjs\",\"sideEffects\":\"false\"} > dist/cjs/package.json && echo {\"type\":\"module\",\"sideEffects\":\"false\"} > dist/esm/package.json",
     "benchmark": "npm run build && node ./benchmark/benchmark.js",
     "document": "typedoc",
     "prepare": "npm run build",

tsconfig.build.esm.json

@@ -0,0 +1,8 @@
+{
+  "extends": "./tsconfig.build.json",
+  "compilerOptions": {
+    "module": "ESNext",
+    "target": "ESNext",
+    "outDir": "dist/esm"
+  }
+}

tsconfig.build.json

@@ -2,5 +2,9 @@
   "extends": "./tsconfig.json",
   "include": [
     "src"
-  ]
+  ],
+  "compilerOptions": {
+    "outDir": "dist/cjs",
+    "module": "commonjs"
+  }
 }

tsconfig.json

@@ -6,11 +6,9 @@
     "noEmit": false,
     "declaration": true,
     "stripInternal": true,
-    "outDir": "dist",
     "downlevelIteration": true,
     "esModuleInterop": true,
     "importHelpers": false,
-    "module": "commonjs",
     "moduleResolution": "node",
     "noFallthroughCasesInSwitch": true,
     "removeComments": true,