server static files based on route code example
Example 1: express public
app.use(express.static(__dirname + '/public'));
Example 2: how to use static file node js
app.use('/static', express.static(path.join(__dirname, 'public')))
app.use(express.static(__dirname + '/public'));
app.use('/static', express.static(path.join(__dirname, 'public')))