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feat: add ability to extend custom element class #8991

Merged
merged 3 commits into from
Jul 18, 2023
Merged

feat: add ability to extend custom element class #8991

merged 3 commits into from
Jul 18, 2023

Commits on Jul 18, 2023

  1. feat: add ability to extend custom element class 

    This should help everyone who has special needs and use cases around custom elements. Since Svelte components are wrapped and only run on connectedCallback, it makes sense to expose the custom element class for modification before that.
- fixes #8954 - use extend to attach the function manually and save possible values to a prop
- closes #8473 / closes #4168 - use extend to set the proper static attribute and then call attachInternals in the constructor
closes #8472 - use extend to attach anything custom you need
closes #3091 - pass `this` to a prop of your choice and use it inside your component
    @dummdidumm
    dummdidumm committed Jul 18, 2023
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  2. more detailed example

    @dummdidumm
    dummdidumm committed Jul 18, 2023
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  3. Update documentation/docs/04-compiler-and-api/04-custom-elements-api.md 

    Co-authored-by: Rich Harris <[email protected]>
    @dummdidumm @Rich-Harris
    dummdidumm and Rich-Harris authored Jul 18, 2023
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