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CustomStateSet: keys() method - Web APIs

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1. Web
2. Web APIs
3. CustomStateSet
4. keys()

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• Syntax
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1. Web Components
2. CustomStateSet
3. Instance properties
   1. size
4. Instance methods
   1. add()
   2. clear()
   3. delete()
   4. entries()
   5. forEach()
   6. has()
   7. keys()
   8. values()
5. Related pages for Web Components
   1. CustomElementRegistry
   2. Document.createElement()
   3. Element.attachShadow()
   4. Element.shadowRoot
   5. Element.slot
   6. ElementInternals
   7. Event.composed
   8. Event.composedPath
   9. HTMLElement.attachInternals()
   10. HTMLSlotElement
   11. HTMLTemplateElement
   12. Node.getRootNode()
   13. Node.isConnected
   14. ShadowRoot
   15. Window.customElements

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Baseline 2024

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Since May 2024, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

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The keys() method of the CustomStateSet interface is an alias for CustomStateSet.values.

js

keys()

None.

A new iterator object containing the values for each element in the given CustomStateSet, in insertion order.

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This page was last modified on Mar 26, 2024 by MDN contributors.

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