Configure webpack's dev server to ignore unneeded files

vue.config.js

 module.exports = {
   devServer: {
-        proxy: 'http://localhost:7777/',
+    proxy: "http://localhost:7777/",
+    watchOptions: {
+      ignored: /\.#|node_modules|~$/,
+    },
   },
   configureWebpack: {
-        devtool: 'source-map',
+    devtool: "source-map",
   },
   publicPath: "/web/",
-}
\ No newline at end of file
+};