关于使用接口

Question

请你帮我使用接口好吗？这是m码：

export interface WidgetAccess {
widgets: BaseWidget[];
iswAValid: boolean;
}

export interface BaseWidget {
readonly extension: WidgetExtension;
isValid?:boolean;
areaId?: number;
}

export enum WidgetExtension {
Score = 'score',
Ranking = 'ranking'
}

export interface RankingWidgetAttributes {
rankingType?: RankingType;
demographicType?: RankingDemographicType;
demographicId?: number;
topicId?: number;
}

export interface RankingWidget extends BaseWidget {
extensionAttributes: RankingWidgetAttributes
}

if (dashboardConfiguration.widgets.filter(w=>{
        w.iswAValid =true;
        if(w.widgets.filter((wid)=>{
                wid.isValid = true;
                if(wid.extension === WidgetExtension.Score){
                                      if(wid.extension === WidgetExtension.Ranking){
                    if(this.IsInvalidValidRankingWidget(wid)){
                        wid.isValid = false;
                        return wid;
                    }
                }
        }).length > 0){
          return w;
        }
    }).length >0){
        results.set('widget', false);
        results.set('valid', false);
    }

我正在接收：'BaseWidget‘类型的参数不能分配给'RankingWidget’类型的参数。属性“extensionAttributes”在“BaseWidget”类型中缺失，但在this.IsInvalidValidRankingWidget(wid)的“RankingWidget”类型中是必需的，请帮助我好吗？

IsInvalidValidRankingWidget(widget : RankingWidget): boolean{
        if((widget.areaId === undefined || widget.areaId === null) 
        && (widget.extensionAttributes.topicId === undefined  ||  
        widget.extensionAttributes.topicId === null)
        ){
        return true;
         }
        return false;
 }

Answer 1

因此，我假定错误在方法IsInvalidValidRankingWidget中。我会重写它的

IsInvalidValidRankingWidget(widget : BaseWidget): boolean{
    const rankingWidget = widget as RankingWidget;
    if((rankingWidget .areaId === undefined || rankingWidget .areaId === null) 
    && (rankingWidget .extensionAttributes.topicId === undefined  ||  
    rankingWidget .extensionAttributes.topicId === null)
    ){
    return true;
     }
    return false;
}

这应该能弥补我希望的错误。