问题 I am trying to nest maps to render an array within an object My Cards Component Render Method (Not Nested, Working): render() { return ( <div class="mediator-container"> {this.state.routeList.map( (route, index) => <Card busName={this.state.routeList[index].$.tag} /> )} <span class="loader"> <span class="loader-inner"></span> </span> </div> ); } My Cards Component Render Method (Nesteing, Not Working!!): render() { return ( <div class="mediator-container"> {this.state.routeList.map((route,