init brojs

src/index.tsx

@@ -0,0 +1,28 @@
+/* eslint-disable @typescript-eslint/ban-ts-comment */
+/* eslint-disable @typescript-eslint/no-explicit-any */
+/* eslint-disable react/display-name */
+import React from 'react'
+import ReactDOM from 'react-dom/client'
+  
+import App from './app'
+  
+export default () => <App/>
+  
+let rootElement: ReactDOM.Root
+  
+export const mount = (Component, element = document.getElementById('app')) => {
+  rootElement = ReactDOM.createRoot(element)
+  rootElement.render(<Component/>)
+
+  // @ts-ignore
+  if(module.hot) {
+    // @ts-ignore
+    module.hot.accept('./app', ()=> {
+      rootElement.render(<Component/>)
+    })
+  }
+}
+
+export const unmount = () => {
+  rootElement.unmount()
+}