Question 1

How do I use Enlive with Ring in a Clojure web app?

Accepted Answer

Define templates or snippets in Enlive that generate HTML strings, then integrate them into Ring handlers to serve responses. Common patterns involve using libraries like Compojure for routing and passing dynamic data to transformations.

Question 2

Enlive or Hiccup: which is better for Clojure templating?

Accepted Answer

Enlive is best for transforming existing HTML files with CSS selectors, ideal when you have static templates. Hiccup generates HTML from Clojure data structures, better for code-first approaches. Choose based on whether you prefer manipulating HTML or building it from scratch.

Question 3

How to loop over a list and generate dynamic content in Enlive?

Accepted Answer

Use the `clone-for` transformation within your selectors. It clones the selected node for each item in a collection, allowing you to apply transformations like setting content or attributes based on the data.

Question 4

Can Enlive handle real-time updates or client-side interactions?

Accepted Answer

No, Enlive is strictly for server-side HTML generation. For interactive features, you'll need to pair it with JavaScript on the client, and Enlive can serve the initial static HTML that JavaScript then manipulates.

Question 5

What are the performance trade-offs of using Enlive selectors?

Accepted Answer

Selector-based transformations add some overhead compared to simpler string templating, but for typical web pages, it's minimal. However, in high-performance scenarios with complex DOM structures, benchmark to ensure it meets latency requirements.

Question 6

How to debug Enlive when selectors don't match as expected?

Accepted Answer

Verify the HTML structure matches your selectors by inspecting parsed nodes. Use Enlive's helper functions and consider writing unit tests for transformations. The auto-reloading feature can also help during iterative development.

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