From f686cd2d8affa9a104672b085565d202c9d22655 Mon Sep 17 00:00:00 2001
From: Wu-Hui <wu.hui.github@gmail.com>
Date: Wed, 17 Aug 2022 15:24:25 -0400
Subject: [PATCH 1/2] Target ES6 for Console Build

---
 .../firestore-compat/tools/console.build.js     | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/packages/firestore-compat/tools/console.build.js b/packages/firestore-compat/tools/console.build.js
index a1bc0436a52..71692a1a429 100644
--- a/packages/firestore-compat/tools/console.build.js
+++ b/packages/firestore-compat/tools/console.build.js
@@ -34,12 +34,17 @@ const EXPORTNAME = '__firestore_exports__';
 const OUTPUT_FOLDER = 'dist';
 const OUTPUT_FILE = 'standalone.js';
 
-const es5InputOptions = {
+const es6InputOptions = {
   input: 'src/index.console.ts',
   plugins: [
     nodeResolve(),
     typescriptPlugin({
       typescript,
+      tsconfigOverride: {
+        compilerOptions: {
+          target: 'es6'
+        }
+      },
       transformers: [rollupUtil.removeAssertTransformer]
     }),
     json({ preferConst: true }),
@@ -51,19 +56,19 @@ const es5InputOptions = {
   ]
 };
 
-const es5OutputOptions = {
+const es6OutputOptions = {
   file: `${OUTPUT_FOLDER}/${OUTPUT_FILE}`,
   name: EXPORTNAME,
-  format: 'iife'
+  format: 'es'
 };
 
 const POSTFIX = `window['${EXPORTNAME}']=${EXPORTNAME};`;
 
 async function build() {
-  const es5Bundle = await rollup.rollup(es5InputOptions);
+  const es6Bundle = await rollup.rollup(es6InputOptions);
   const {
     output: [{ code }]
-  } = await es5Bundle.generate(es5OutputOptions);
+  } = await es6Bundle.generate(es6OutputOptions);
 
   const output = `${String(code)}${POSTFIX}`;
 
@@ -71,7 +76,7 @@ async function build() {
     fs.mkdirSync(OUTPUT_FOLDER);
   }
 
-  await fs_writeFile(es5OutputOptions.file, output, 'utf-8');
+  await fs_writeFile(es6OutputOptions.file, output, 'utf-8');
 }
 
 build();

From abea588d80eb14212f8c6c3f8ed06b245724ba37 Mon Sep 17 00:00:00 2001
From: Wu-Hui <wu.hui.github@gmail.com>
Date: Thu, 25 Aug 2022 14:01:13 -0400
Subject: [PATCH 2/2] Fix format for console

---
 packages/firestore-compat/tools/console.build.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/firestore-compat/tools/console.build.js b/packages/firestore-compat/tools/console.build.js
index 71692a1a429..4c49e137343 100644
--- a/packages/firestore-compat/tools/console.build.js
+++ b/packages/firestore-compat/tools/console.build.js
@@ -59,7 +59,7 @@ const es6InputOptions = {
 const es6OutputOptions = {
   file: `${OUTPUT_FOLDER}/${OUTPUT_FILE}`,
   name: EXPORTNAME,
-  format: 'es'
+  format: 'iife'
 };
 
 const POSTFIX = `window['${EXPORTNAME}']=${EXPORTNAME};`;