Imperative Shadow DOM Distribution API

Category: DOM
Type: New or changed feature
Status: Enabled by default (Chrome 86)
Intent stage: Shipped

Summary

Web developers can specify node-to-slot assignments imperatively in Shadow DOM slotting. Please see the spec discussion [1] and the explainer [2]. - [1] https://github.com/whatwg/html/issues/3534 - [2] https://github.com/w3c/webcomponents/blob/gh-pages/proposals/Imperative-Shadow-DOM-Distribution-API.md

Motivation

Allow node-to-slot assignments without needing to add slot attribute in markup. And enabled dynamic slotting behavior based on input conditions.

Standards & signals

Specification: https://github.com/whatwg/html/pull/5483, https://github.com/whatwg/dom/pull/860/
Firefox: Positive
Safari: Positive
Web developers: Positive
Tracking bug: http://crbug.com/869308

Docs: https://github.com/w3c/webcomponents/blob/gh-pages/proposals/Imperative-Shadow-DOM-Distribution-API.md

Explainers: https://github.com/w3c/webcomponents/blob/gh-pages/proposals/Imperative-Shadow-DOM-Distribution-API.md

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