Question 1

How do I add query parameters using URI.js?

Accepted Answer

Use the addQuery method on a URI instance, like `new URI('http://example.com').addQuery('foo', 'bar')`. This automatically handles encoding and allows chaining for multiple parameters, making it cleaner than manual string concatenation.

Question 2

URI.js vs native URL API: which is better?

Accepted Answer

URI.js offers more features like URI templates and chainable mutations, but for modern browsers, native APIs are sufficient and reduce bundle size. Choose URI.js for cross-browser consistency or advanced needs; otherwise, prefer native solutions.

Question 3

Does URI.js work with Node.js?

Accepted Answer

Yes, install it via npm with `npm install urijs` and require it. It provides full URL manipulation capabilities in Node.js, complementing or replacing Node's built-in URL module for more complex operations.

Question 4

How to normalize query strings with URI.js?

Accepted Answer

Call the normalizeQuery method on a URI object to clean duplicates and empty parameters, e.g., `URI('?foo=bar&foo=baz').normalizeQuery()` returns `?foo=bar&foo=baz`. This ensures consistent query formatting.

Question 5

What is URI template expansion in URI.js?

Accepted Answer

It supports RFC 6570 URI templates for dynamic URL generation, using `URI.expand()` with variables. For example, `URI.expand('/foo/{dir}', {dir: 'bar'})` outputs `/foo/bar`, useful for REST APIs or routing.

Question 6

Is URI.js deprecated now that browsers have URL API?

Accepted Answer

Not deprecated, but less necessary for new projects on modern browsers. It remains valuable for legacy support, Node.js environments, or when needing advanced features like relative path resolution that native APIs lack.

URI.js

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