Question 1

Nunjucks vs EJS: which is better for Node.js?

Accepted Answer

Nunjucks offers more advanced features like template inheritance and async support, making it better for complex logic, while EJS is simpler with JavaScript embedded directly, ideal for quick, straightforward templating.

Question 2

How to use Nunjucks with async/await in templates?

Accepted Answer

Use async filters or the async tag; define async functions as filters in the environment or wrap async operations in tags to handle promises directly within templates.

Question 3

Can Nunjucks be used for client-side templating?

Accepted Answer

Yes, Nunjucks is designed to work in browsers and can be bundled with tools like Webpack, but it lacks built-in reactivity, so updates require manual re-rendering.

Question 4

What are the performance implications of using Nunjucks?

Accepted Answer

Nunjucks includes template caching to improve performance, but rendering overhead can add up in high-throughput scenarios; benchmark against lighter engines for critical applications.

Question 5

How to extend Nunjucks with custom filters?

Accepted Answer

Add custom filters to the template environment using the addFilter method, allowing you to create reusable functions for data transformation within templates.

Question 6

Is Nunjucks good for building single-page applications?

Accepted Answer

It can be used for initial server-side rendering or static generation, but for dynamic SPAs, additional libraries are needed for state management and updates, as it's not a full framework.

nunjucks

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