@virtualstate/app-history/esnext/app-history-event-target.js

Native JavaScript [app-history](https://github.com/WICG/app-history) implementation

import { EventTarget } from "./event-target/index.js";
export class AppHistoryEventTarget extends EventTarget {
    addEventListener(type, listener, options) {
        assertEventCallback(listener);
        return super.addEventListener(type, listener, typeof options === "boolean" ? { once: options } : options);
        function assertEventCallback(listener) {
            if (typeof listener !== "function")
                throw new Error("Please us the function variant of event listener");
        }
    }
    removeEventListener(type, listener, options) {
        assertEventCallback(listener);
        return super.removeEventListener(type, listener);
        function assertEventCallback(listener) {
            if (typeof listener !== "function")
                throw new Error("Please us the function variant of event listener");
        }
    }
}
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