Require Node.js 14, TS 4.7, and move to ESM (#167)

package.json

@@ -10,9 +10,11 @@
 		"email": "sindresorhus@gmail.com",
 		"url": "https://sindresorhus.com"
 	},
-	"main": "dist/index.js",
+	"type": "module",
+	"exports": "./index.js",
+	"types": "./index.d.ts",
 	"engines": {
-		"node": ">=10"
+		"node": ">=14.16"
 	},
 	"scripts": {
 		"build": "del dist && tsc",
@@ -47,50 +49,34 @@
 		"types"
 	],
 	"devDependencies": {
-		"@sindresorhus/tsconfig": "^0.7.0",
-		"@types/jsdom": "^16.1.0",
-		"@types/node": "^14.0.13",
-		"@types/zen-observable": "^0.8.0",
-		"@typescript-eslint/eslint-plugin": "^2.20.0",
-		"@typescript-eslint/parser": "^2.20.0",
-		"ava": "^3.3.0",
-		"del-cli": "^2.0.0",
-		"eslint-config-xo-typescript": "^0.26.0",
-		"jsdom": "^16.0.1",
-		"rxjs": "^6.4.0",
-		"tempy": "^0.4.0",
-		"ts-node": "^8.3.0",
-		"typescript": "~3.8.2",
-		"xo": "^0.26.1",
-		"zen-observable": "^0.8.8"
+		"@sindresorhus/tsconfig": "^3.0.1",
+		"@types/jsdom": "^16.2.14",
+		"@types/node": "^17.0.42",
+		"@types/zen-observable": "^0.8.3",
+		"ava": "^4.3.0",
+		"del-cli": "^4.0.1",
+		"jsdom": "^19.0.0",
+		"rxjs": "^7.5.5",
+		"tempy": "^3.0.0",
+		"ts-node": "^10.8.1",
+		"typescript": "~4.7.3",
+		"xo": "^0.50.0",
+		"zen-observable": "^0.8.15"
 	},
-	"types": "dist/index.d.ts",
 	"sideEffects": false,
 	"ava": {
-		"extensions": [
-			"ts"
-		],
-		"require": [
-			"ts-node/register"
+		"extensions": {
+			"ts": "module"
+		},
+		"nodeArguments": [
+			"--loader=ts-node/esm"
 		]
 	},
 	"xo": {
-		"extends": "xo-typescript",
-		"extensions": [
-			"ts"
-		],
-		"parserOptions": {
-			"project": "./tsconfig.xo.json"
-		},
-		"globals": [
-			"BigInt",
-			"BigInt64Array",
-			"BigUint64Array"
-		],
 		"rules": {
-			"@typescript-eslint/promise-function-async": "off",
 			"@typescript-eslint/no-empty-function": "off",
-			"@typescript-eslint/explicit-function-return-type": "off"
+			"@typescript-eslint/explicit-function-return-type": "off",
+			"@typescript-eslint/triple-slash-reference": "off"
 		}
 	}
 }