Imperative slot assignment
The assign() method for <slot> elements assigns nodes to the slot, as an alternative to using the slot and name HTML attributes. The nodes must be children of a shadow host and the shadow root must be created with the slotAssignment set to "manual". Also known as manual slot assignment.
Status
Baseline Newly Available (since 2023-03-27)
This feature is expected to reach Baseline Widely Available status on: 2025-09-27
MDN documentation
Specifications
- HTML (#dom-slot-assign), from HTML Workstream (WHATWG).
Browser support
- Chrome 86 Released on 2020-10-20
- Chrome Android 86 Released on 2020-10-20
- Edge 86 Released on 2020-10-09
- Firefox 92 Released on 2021-09-07
- Firefox for Android 92 Released on 2021-09-07
- Safari 16.4 Released on 2023-03-27
- Safari on iOS 16.4 Released on 2023-03-27
Developer signals
- State of HTML 2024: web_components/web_components_features question
- State of HTML 2024: web_components/web_component_features question
- State of HTML 2024: features/all_features question
- State of HTML 2023: web_components/web_components_main_features question
- State of HTML 2023: features/all_features question
Usage (according to Chrome Platform Status)
~0.000% of page loads. More data at chromestatus.
Web Platform Tests (WPT)
View the latest WPT test results for this featureView as JSON | Edit this feature | Report an issue | Web-features entry: source, dist