how to send file in app.get() code example

Example 1: express sendfile html

var express = require('express');
var app = express();
var path = require('path');

// viewed at http://localhost:8080
app.get('/', function(req, res) {
    res.sendFile(path.join(__dirname + '/index.html'));
});

app.listen(8080);

Example 2: sendfile express syntax

app.get('/', function(req, res){
  res.sendFile('index.html');
});