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    Avichay Eyal
    @eavichay
    Correct me if I am wrong, last time I have checked JSDOM does not work with custom elements without polyfills. If you are running unit-tests for web components, you may want to check a dedicated universal tool: showroom.js
    Kartik Sharma
    @Kartik1607
    Can anyone confirms if youtube uses shadow dom or not?
    its built on polymer, but could'nt find any shadow dom ref
    Daan Haitsma
    @daanhaitsma
    There are a bunch of custom elements (["yt-activity-manager", "yt-guide-manager", "yt-gfeedback-manager", "yt-navigation-manager", "yt-network-manager", "yt-playlist-manager", "yt-player-manager", "yt-visibility-monitor", "ytd-page-manager", "ytd-playlist-sidebar-renderer", "ytd-settings-sidebar-renderer", "ytd-thumbnail-overlay-time-status-renderer", "ytd-player", "video", "ytd-guide-entry-renderer", "ytd-guide-collapsible-section-entry-renderer", "yt-page-navigation-progress"]), but those indeed do not seem to use shadow dom
    Kartik Sharma
    @Kartik1607
    Wondering is slots can be used without shadow Dom. Also, it seems for internet explorer of YouTube website is rendered instead. Wondering if there are any limitations in polyfills.
    Avichay Eyal
    @eavichay
    There is no need for shadow dom in youtube. Therefor it is not used.
    Andreas Hahn
    @drdreo
    Shadow Dom is never "needed". It's about using the platform and how to do it.
    Guilherme Humberto
    @GuilhermeHumberto
    Hello guys! I would like to make a floating chat component, similar to tawk.to. Do you know if there is a project?
    Avichay Eyal
    @eavichay
    @drdreo it's needed of course, depends in the context. Polyner and Lit chose to use shadow dom always, which i think is not always the right case.
    Hari Krishna Gaddipati
    @hari2m
    Hi Guys I am trying to use the cellClassNameGenerator property and assigned a function that returns a class name. But the class did not get applied.
    should I set the value of column or returning the class name si enough?
    Help my guys
    I have this web component rendered with lit-html
        <paper-dropdown-menu label="Dinosaurs">
          <paper-listbox slot="dropdown-content" >
            <paper-item>allosaurus</paper-item>
            <paper-item>brontosaurus</paper-item>
            <paper-item>carcharodontosaurus</paper-item>
            <paper-item>diplodocus</paper-item>
          </paper-listbox>
        </paper-dropdown-menu>
    -- To do a search i need the selected value of this paper component, what is the best way to achieve this?
    Tim Sweet
    @timothyswt_twitter
    the paper-dropdown-menu needs to emit events for when the items are changed. if it isn't then you're going to have a harder time
    if it is, then you just need to add the event listener after it is rendered.
    Suren2695
    @Suren2695
    Hey guys I need to create a web components using react and I need to use that Components in html or js file which is present in different folder
    Do we need any dependence packages
    Help me out guys
    Georges Gomes
    @georges-gomes
    Check out React and Preact templates on webcomponents.dev
    Suren2695
    @Suren2695
    Thanks bro
    Simple extension to see who uses custom elements
    Harihara Krishnan
    @veehhk
    Hello 👋
    Just decided to create a web component for my project. I'm planning to make a excel like worksheet having drag and drop features.
    Are there anything already in place?
    Much appreciate your help!!
    gsai0205
    @gsai0205
    Do we have any tool/framework to benchmark performance of web components?
    onkar75
    @onkar75
    Does anybody know a simple admin dashboard built on web components, looking for some sample reference.