Posted over 5 years ago. Visible to the public.

HAML 4+ expands nested element attributes

As you may know, HAML expands data attributes Archive that are given as a hash:

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%div{ data: { count: 3 } } # results in: <div data-count="3"></div>

However, this also works for any other hash attribute. Consider an Angular directive or an Unpoly Archive compiler that is configured by several attributes. Usually you'd prefix them with the directive/compiler name so it gets clear where the attribute belongs. With HAML, this is easy to build:

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%div{ lightbox: true, lightbox: { slide_count: 3, url: '...', cycle: true } } # results in: <div lightbox lightbox-slide-count="3" lightbox-url="..." lightbox-cycle="true"></div>

Awesome!

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Dominik Schöler
Last edit:
over 5 years ago
by Martin Straub
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We are makandra and do test-driven, agile Ruby on Rails software development.
License for source code
Posted by Dominik Schöler to makandra dev
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