From c6f801a1b35d8dea01e2a560e980c750619e1d8c Mon Sep 17 00:00:00 2001
From: Brandon Liu <bdon@bdon.org>
Date: Thu, 3 Jun 2021 12:21:19 +0800
Subject: [PATCH] esm target is built by esbuild so dependents don't need
 classProperties

---
 js/.gitignore   | 1 +
 js/package.json | 4 +++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/js/.gitignore b/js/.gitignore
index 6736aa1..651896c 100644
--- a/js/.gitignore
+++ b/js/.gitignore
@@ -1,2 +1,3 @@
 node_modules
 index.js
+index.mjs
diff --git a/js/package.json b/js/package.json
index b075359..0b0403e 100644
--- a/js/package.json
+++ b/js/package.json
@@ -12,7 +12,9 @@
   ],
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
-    "build": "esbuild index.mjs --outfile=index.js --target=es2015 --global-name=pmtiles --format=iife"
+    "build-iife": "esbuild index.src.mjs --outfile=index.js --target=es2015 --global-name=pmtiles --format=iife",
+    "build-esm": "esbuild index.src.mjs --outfile=index.mjs --target=es6 --global-name=pmtiles --format=esm",
+    "build":"npm run build-iife && npm run build-esm"
   },
   "homepage": "https://github.com/protomaps/pmtiles",
   "author": "Brandon Liu",