From d353f544299854069094d8748e0c1ec1e15d3c88 Mon Sep 17 00:00:00 2001
From: Daniel Morgenstern <morgenstern.daniel@gmail.com>
Date: Tue, 2 Feb 2021 22:20:30 +0100
Subject: [PATCH] Update babel and add optional chaining plugin

---
 package-lock.json | 1552 ++++++++++++++++++++++++++++-----------------
 package.json      |    6 +-
 2 files changed, 971 insertions(+), 587 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index a409761..c6dbc5e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,6 +4,903 @@
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@@ -2366,16 +2796,6 @@
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@@ -2442,15 +2862,6 @@
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@@ -2512,12 +2923,6 @@
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@@ -2657,15 +3062,6 @@
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@@ -2783,12 +3179,6 @@
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@@ -2859,6 +3249,13 @@
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+    "upath": {
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+      "resolved": "https://registry.npmjs.org/upath/-/upath-1.2.0.tgz",
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@@ -2873,12 +3270,6 @@
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@@ -2886,15 +3277,6 @@
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diff --git a/package.json b/package.json
index 6f3c02d..fd059b4 100644
--- a/package.json
+++ b/package.json
@@ -7,13 +7,15 @@
   "author": "Daniel Morgenstern <morgenstern.daniel@gmail.com>",
   "license": "MIT",
   "scripts": {
-    "transpile": "babel src --presets babel-preset-es2015 --out-dir build",
+    "transpile": "babel src --presets babel-preset-env --plugins @babel/plugin-proposal-optional-chaining --out-dir build",
     "minify": "uglifyjs build/html2biblatex.js -o build/html2biblatex.min.js",
     "wrap": "node wrap.js",
     "build": "npm run transpile && npm run minify && npm run wrap"
   },
   "devDependencies": {
-    "babel-cli": "^6.26.0",
+    "@babel/cli": "^7.12.10",
+    "@babel/core": "^7.12.10",
+    "@babel/plugin-proposal-optional-chaining": "^7.12.7",
     "babel-preset-env": "^1.7.0",
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