express.static(__dirname + '/public') not working code example

Example 1: nodejs express server img src

<img src="/logo.jpg" />

Example 2: how to use static file node js

app.use('/static', express.static(path.join(__dirname, 'public')))

Example 3: how to set multiple static paths in node ejs

app.use(express.static('public'))
app.use(express.static('files'))