cvdom
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Conditional virtual-dom templates to inject data and repeat/skip sections as the template renders by calling h. We splice in our own controller called ch which is required at runtime just like h.
Install
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npm install cvdom
Test
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npm test
History
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I first used the approach taken in this virtual-dom overlay implementation in a PHP templating library I wrote 10+ years ago. At some point I will look for it and try to port all features.
The cvdom approach (conditions + hyperscript) is compatible with the domplate library used in Firebug. domplate also deals with event listeners (which cvdom does not directly) and hyperscript has a JSON intermediate representation (VTree) which domplate does not.
The goal of cvdom is to provide a thin layer on top of hyperscript that allows for conditional and repeated control of sections using a JSON control object or equivalent module hooks that plays nice with the hyperscript JSON intermediate representation and h runtime library.
Ultimately one should be able to write an adapter to run existing domplate modules using the cvdom implementation vs the generated domplate templates and also compile templates written in other formats to cvdom and then to a domplate runtime template.
domplate is important because it uses a runtime representation that does NOT reflect original source logic details. i.e. Its a runtime format that can be used to keep hard-earned higher order logic hidden as it is removed in the compile process. hscript has the same benefit but ultimately domplate compiles closer to the DOM due to it also directly dealing with event handlers.
domplate modules have been proven extremely compact and useful within Firebug and have stood the test of time. They are currently being migrated to the new mozilla devtools projects which will renew their (or compatible implementations) life significantly.
A potential improvement over the domplate runtime approach could be the incremental-dom approach (as it could ultimately lead to less runtime source code per module) HOWEVER it has yet to be proven if a DOM generator from objects like incremental-dom is superior over JS code operating directly on the DOM like domplate does.
Provenance
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Original source logic UNLICENSED by Christoph Dorn