Q28: How do template engines (EJS, Pug, Handlebars) integrate with Express?
Template engines dynamically render server-side HTML files populated with backend data values.
Configuring EJS View Engine
const path = require('path');
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
app.get('/index', (req, res) => {
res.render('index', { user: 'Alice', title: 'Home Page' });
});💡 res.render compiles the named template file located in the views directory using local variables.
Key Takeaways
- Configure engines using
app.set('view engine', 'engine_name'). - Express calls
res.render()to inject data properties into rendered views.