vite supports optional Chaining (optional chain judgment operator?.) and nullishCoalescingOperator

vite supports optional Chaining (optional chain judgment operator?.) and nullishCoalescingOperator (null value coalescing operator??)

Install babel optional chain judgment operator, null merge operator compatibility dependency

yarn add @babel/plugin-proposal-optional-chaining --dev

yarn add  @babel/plugin-proposal-nullish-coalescing-operator -dev

vite.config.ts add configuration

import { defineConfig } from "vite";
import react from "@vitejs/plugin-react";
import checker from "vite-plugin-checker";
import vitePluginImp from "vite-plugin-imp";
import path from "path";
// https://vitejs.dev/config/
export default defineConfig(({ mode }) => {
  return {
    plugins: [
      react({
        babel: {
          plugins: [
            "@babel/plugin-proposal-optional-chaining",
            "@babel/plugin-proposal-nullish-coalescing-operator",
          ],
        },
      }),
    ],
  };
});

vue please use @vitejs/plugin-vue [not tested]