Generic Map

⚠️ BREAKING: The Map function has been updated for Go 1.18 onwards, where the function signature is changed from

func Map(length int, cb func(i int) Node) []Node

to

func Map[T any](ts []T, cb func(T) Node) []Node

This should make it slightly easier to map slices of whatever type you're using to HTML components.

Update doc comments

This is a tiny release to update some doc comments.

Add http package for http handler glory

This release adds the http package, with defines a Handler and an Adapt function, which makes it easy to use gomponents with net/http handlers.

⚠️ BREAKING: The assert package has been moved to be internal only. No other breaking changes.

Add srcset and loading attributes

Useful on picture and img elements. Contributed by @averageflow, thank you! 😎

Add the video element

This release adds the video element and loop, muted, playsinline, poster attributes.

See https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video for the specs.

Escape those attribute values!

v0.17.0 brings a security update, where the library now makes sure to escape attribute values. So feel free to pass user-generated values to Attr now. Special thanks to @philippta for reporting and guidance. 😎

Also, there are documentation updates, so there should be runnable examples on godoc soon.

Also, two new helper components made it into the components package: LinkStylesheet and LinkPreload. Enjoy!

Streamline all the elements

⚠️ BREAKING: All elements in the html package now take just Nodes as children. No more text strings as the first argument for certain elements like h1, em, and many more. This makes the API the same for all element helper functions. (Except Doctype, which isn't really an element but a document prefix.)

New: The svg package has begun. It provides helper functions for SVG elements for inlining into HTML documents.

Expose only the Node interface

⚠️ BREAKING: All helpers now return the Node interface instead of NodeFunc. The latter is now more or less an implementation detail. For most users of the API, this change will probably not be noticeable.

Add data- attributes

⚠️BREAKING: This release adds a data- attribute helper. Therefore, the Data element helper has been renamed to DataEl.

Conditional nodes and aria attributes

This release adds the If helper function, to conditionally add nodes inline, as well as aria- and role attributes.