What are some examples of route parameters in Express?

Can you give me some examples of route parameters in Express?

Sure! In Express, route parameters are named URL segments that can be used to capture values. For example, in the route /users/:id, :id is a route parameter.

How do I access the value of a route parameter?

You can access route parameters using req.params. For instance, if you have a route like /users/:id, you can get the id value with req.params.id.

Can I have multiple route parameters in a single route?

Yes, you can! For example, /users/:userId/posts/:postId has two parameters: userId and postId. You can access them using req.params.userId and req.params.postId.

What happens if a route parameter is not provided?

If a route parameter is not provided, req.params will return undefined for that parameter. You can handle this in your route logic.