chore: replace Babel with esbuild

build.sh

@@ -1,5 +1,9 @@
 #!/bin/bash -ex
 rm -rf ./build
 
-# Simple babel run
-./node_modules/.bin/babel --out-dir ./build ./src
+# Build with esbuild
+./node_modules/.bin/esbuild src/*.jsx src/*.js \
+  --outdir=build \
+  --format=cjs \
+  --target=node20 \
+  --platform=node

eslint.config.js

@@ -1,16 +1,15 @@
-const babelParser = require("@babel/eslint-parser");
 const js = require("@eslint/js");
 const globals = require("globals");
 
 module.exports = [
   js.configs.recommended,
   {
     languageOptions: {
-      parser: babelParser,
+      ecmaVersion: 2022,
+      sourceType: "commonjs",
       parserOptions: {
-        requireConfigFile: false,
-        babelOptions: {
-          presets: ["@babel/preset-react"]
+        ecmaFeatures: {
+          jsx: true
         }
       },
       globals: {

package.json

@@ -12,10 +12,9 @@
   },
   "scripts": {
     "prepublishOnly": "npm run build",
-    "test": "mocha --require @babel/register",
-    "test:watch": "mocha --watch --require @babel/register",
-    "test:cov": "isparta cover ./node_modules/.bin/_mocha",
-    "lint": "eslint src/",
+    "test": "mocha --require tsx 'test/**/*.jsx'",
+    "test:watch": "mocha --watch --require tsx 'test/**/*.jsx'",
+    "lint": "eslint 'src/**/*.{js,jsx}'",
     "build": "bash build.sh",
     "preversion": "yarn test && git add CHANGELOG.md",
     "postversion": "git push --tags && yarn publish . --tag $npm_package_version && git push && echo \"Successfully released version $npm_package_version!\""
@@ -31,21 +30,16 @@
   },
   "homepage": "https://github.com/STRML/react-document-events#readme",
   "devDependencies": {
-    "@babel/cli": "^7.28.3",
-    "@babel/core": "^7.28.5",
-    "@babel/eslint-parser": "^7.28.5",
-    "@babel/plugin-transform-class-properties": "^7.27.1",
-    "@babel/preset-env": "^7.28.5",
-    "@babel/preset-react": "^7.28.5",
-    "@babel/register": "^7.28.3",
     "chai": "^6.2.2",
+    "esbuild": "^0.27.2",
     "eslint": "^9.39.2",
     "globals": "^16.5.0",
     "jsdom": "^27.4.0",
     "mocha": "^11.7.5",
     "pre-commit": "^1.2.2",
     "react": "^19.2.3",
-    "react-dom": "^19.2.3"
+    "react-dom": "^19.2.3",
+    "tsx": "^4.21.0"
   },
   "peerDependencies": {
     "react": ">=16.8",

test/index.spec.js → test/index.spec.jsx

@@ -1,6 +1,6 @@
 'use strict';
 /*eslint no-console: 0*/
-const ReactDocumentEvents = require('../src/ReactDocumentEvents');
+const ReactDocumentEvents = require('../src/ReactDocumentEvents.jsx');
 const expect = require('chai').expect;
 const React = require('react');
 const {createRoot} = require('react-dom/client');