new installations

server/.eslintrc.js

 module.exports = {
     "env": {
         "browser": true,
+        "commonjs": true,
         "es2021": true
     },
     "extends": "plugin:vue/essential",
     "parserOptions": {
         "ecmaVersion": 12,
-        "sourceType": "module"
+        "parser": "@typescript-eslint/parser"
     },
     "plugins": [
-        "vue"
+        "vue",
+        "@typescript-eslint"
     ],
     "rules": {
     }

server/src/app.js

+
 console.log('hello')
+console.log("welcome!!")