When to Use Web Components
summary
Explains practical criteria for using Web Components: using the <template> element to reduce parsing cost (benchmarks claiming ~66% and ~2x improvements), using Shadow DOM to truly isolate styles (with video/input demos showing unexpected shadow internals), and using Custom Elements plus lifecycle hooks like connectedCallback to make mounting deterministic. Walks through an image component that clones a template and updates on attribute changes, and pinpoints where browser-native standards outperform libraries and where small libraries remain useful, with concrete demos and numbers.
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chapters (11)
- 0:00Intro
- 1:003 accepted standards
- 3:48Performance problems
- 8:36Native elements have encapsulation
- 10:44User-exposed Shadow DOM
- 11:56Other implementation benefits
- 15:51Component model
- 19:30Browser standards
- 20:58When to use Custom Elements
- 26:04Straightforward translation
- 27:25We talked about
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