chore: support transform optional chaining #199

Author: John60676

babel.config.js

@@ -2,6 +2,7 @@ const presets = ['@babel/preset-env'];
 const plugins = [
   '@vue/babel-plugin-jsx',
   '@babel/plugin-proposal-nullish-coalescing-operator',
+  '@babel/plugin-proposal-optional-chaining',
   [
     '@babel/plugin-proposal-class-properties',
     {

package.json

@@ -61,6 +61,7 @@
   "devDependencies": {
     "@babel/core": "^7.12.3",
     "@babel/plugin-proposal-nullish-coalescing-operator": "^7.14.5",
+    "@babel/plugin-proposal-optional-chaining": "^7.21.0",
     "@babel/plugin-syntax-class-properties": "^7.12.13",
     "@babel/plugin-transform-runtime": "^7.12.1",
     "@babel/preset-env": "^7.12.1",

yarn.lock

@@ -315,6 +315,15 @@
     "@babel/helper-plugin-utils" "^7.18.6"
     "@babel/plugin-syntax-nullish-coalescing-operator" "^7.8.3"
 
+"@babel/plugin-proposal-optional-chaining@^7.21.0":
+  version "7.21.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-optional-chaining/-/plugin-proposal-optional-chaining-7.21.0.tgz#886f5c8978deb7d30f678b2e24346b287234d3ea"
+  integrity sha512-p4zeefM72gpmEe2fkUr/OnOXpWEf8nAgk7ZYVqqfFiyIG7oFfVZcCrU64hWn5xp4tQ9LkV4bTIa5rD0KANpKNA==
+  dependencies:
+    "@babel/helper-plugin-utils" "^7.20.2"
+    "@babel/helper-skip-transparent-expression-wrappers" "^7.20.0"
+    "@babel/plugin-syntax-optional-chaining" "^7.8.3"
+
 "@babel/plugin-proposal-private-property-in-object@^7.21.0":
   version "7.21.0"
   resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-private-property-in-object/-/plugin-proposal-private-property-in-object-7.21.0.tgz#19496bd9883dd83c23c7d7fc45dcd9ad02dfa1dc"