Remove Extension for URL and 404 Error in node js

 const express=require('express');

const path=require('path');

const app=express();

const publicPath=path.join(__dirname,'public');

// console.log(publicPath);

// app.use(express.static(publicPath));

app.get("",(_,resp)=>{

    resp.sendFile(`${publicPath}/index.html`);

});

app.get("/home",(_,resp)=>{

    resp.sendFile(`${publicPath}/home.html`);

});

app.get('/about',(_,resp)=>{

    resp.sendFile(`${publicPath}/about.html`);

})

app.get('*',(req,resp)=>{

    resp.sendFile(`${publicPath}/nopage.html`);

})

app.listen(4000);