Office Whisperer

export class AbortSignal { onabort = null; _aborted = false; constructor() { Object.defineProperty(this, "_aborted", { value: false, writable: true, }); } get aborted() { return this._aborted; } abort() { this._aborted = true; if (this.onabort) { this.onabort(this); this.onabort = null; } } }