feat: Add .mjs bundle and pkg.main to CJS build (#1642)

* feat: add mjs bundle and pkg.main to CJS build

* update docs

1 files changed, 15 insertions, 0 deletions

diff --git a/support/build/aggregate-module.js b/support/build/aggregate-module.js
new file mode 100644
index 0000000..804f591
--- /dev/null
+++ b/support/build/aggregate-module.js
@@ -0,0 +1,15 @@
+const {rollup} = require('rollup');
+const nodeResolve = require('rollup-plugin-node-resolve');
+
+rollup({
+    input: 'build-es/index.js',
+    plugins: [ nodeResolve() ]
+})
+    .then(( bundle ) => {
+        return bundle.write({
+            format: 'esm',
+            name: 'async',
+            file: 'build/async.mjs'
+        });
+    })
+    .catch((err) => { throw err; });