express only redirect when user code example

Example 1: express redirect to url

app.get('/', (req, res) => {
  res.redirect('/about');
})

Example 2: express js redirect to url

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

// respond with "hello world" when a GET request is made to the homepage
app.get('/', function (req, res) {
  res.send('hello world')
})