import { eventTargetData } from "https://deno.land/x/deno@v1.0.0/cli/js/web/event_target.ts";
type
WeakMap<EventTarget, EventTargetData>
x/deno/cli/js/web/event_target.ts>eventTargetData
import { eventTargetData } from "https://deno.land/x/deno@v1.0.0/cli/js/web/event_target.ts";