Unexpected string concatenation
11app.use(express.static('public'))
12
13app.get('/', (req, res) => {
14 res.sendFile(__dirname + '/public/index.html')15})
16
17io.on('connection', (socket) => {
Description
In ES2015 (ES6), we can use template literals instead of string concatenation.
var str = `Hello, ${name}!`;
Bad Practice
var str = "Hello, " + name + "!";
var str = "Time: " + (12 * 60 * 60 * 1000);
Recommended
var str = "Hello World!";
var str = `Hello, ${name}!`;
var str = `Time: ${12 * 60 * 60 * 1000}`;
var str = "Hello, " + "World!";