From f802e37b70d9a260de65f20cd7b5e046d0d47779 Mon Sep 17 00:00:00 2001
From: Brian Takita <brian.takita@gmail.com>
Date: Wed, 1 Mar 2023 14:18:31 -0500
Subject: [PATCH] ESM support

fixes https://github.com/mholt/PapaParse/issues/977
---
 esm/index.browser.mjs | 2 ++
 esm/index.mjs         | 3 +++
 esm/package.json      | 4 ++++
 package.json          | 1 +
 papaparse.js          | 3 +++
 papaparse.mjs         | 2 ++
 6 files changed, 15 insertions(+)
 create mode 100644 esm/index.browser.mjs
 create mode 100644 esm/index.mjs
 create mode 100644 esm/package.json
 create mode 100644 papaparse.mjs

diff --git a/esm/index.browser.mjs b/esm/index.browser.mjs
new file mode 100644
index 00000000..bdeaa1c6
--- /dev/null
+++ b/esm/index.browser.mjs
@@ -0,0 +1,2 @@
+import '../papaparse.js';
+export default globalThis.Papa;
diff --git a/esm/index.mjs b/esm/index.mjs
new file mode 100644
index 00000000..6962c91a
--- /dev/null
+++ b/esm/index.mjs
@@ -0,0 +1,3 @@
+import { createRequire } from 'module';
+const require = createRequire(import.meta.url);
+export default require('../papaparse.js');
diff --git a/esm/package.json b/esm/package.json
new file mode 100644
index 00000000..6c46b2ee
--- /dev/null
+++ b/esm/package.json
@@ -0,0 +1,4 @@
+{
+	"module": "./index.mjs",
+	"browser": "./index.browser.mjs"
+}
diff --git a/package.json b/package.json
index a0fdc770..e1c35560 100644
--- a/package.json
+++ b/package.json
@@ -35,6 +35,7 @@
 	},
 	"license": "MIT",
 	"main": "papaparse.js",
+	"module": "papaparse.mjs",
 	"browser": "papaparse.min.js",
 	"devDependencies": {
 		"chai": "^4.2.0",
diff --git a/papaparse.js b/papaparse.js
index f5a1f8ff..6faf6b5a 100755
--- a/papaparse.js
+++ b/papaparse.js
@@ -10,11 +10,13 @@ License: MIT
 	/* globals define */
 	if (typeof define === 'function' && define.amd)
 	{
+		console.debug('papaparse.js|amd|debug|1')
 		// AMD. Register as an anonymous module.
 		define([], factory);
 	}
 	else if (typeof module === 'object' && typeof exports !== 'undefined')
 	{
+		console.debug('papaparse.js|exports|debug|1')
 		// Node. Does not work with strict CommonJS, but
 		// only CommonJS-like environments that support module.exports,
 		// like Node.
@@ -22,6 +24,7 @@ License: MIT
 	}
 	else
 	{
+		console.debug('papaparse.js|root.Papa|debug|1')
 		// Browser globals (root is window)
 		root.Papa = factory();
 	}
diff --git a/papaparse.mjs b/papaparse.mjs
new file mode 100644
index 00000000..bcea4793
--- /dev/null
+++ b/papaparse.mjs
@@ -0,0 +1,2 @@
+import Papa from './esm';
+export default Papa;