HarmonyOS 鸿蒙Next：传递 Prop修饰的obj到子函数中 手动进行undefined判断后仍然报错Object is probably undefined

HarmonyOS 鸿蒙Next：传递 Prop修饰的obj到子函数中 手动进行undefined判断后仍然报错Object is probably undefined

在某个struct中作为入参的@Prop修饰的object

@Prop suggestionObj: AssociateSuggestionModel = new AssociateSuggestionModel(0, ‘’, new QueryList(0, [], []));

现在需要用其中的data.fund这个数组的长度进行相关判断.我使用getSearchAssociateFundVisibility()判断报错Object is probabliy undefined

函数

export function getSearchAssociateFundVisibility(suggestionObj: AssociateSuggestionModel) {
    if(suggestionObj == undefined || (suggestionObj != undefined && suggestionObj.data.fund.length == 0)) {
        return Visibility.None 
    } else {
        return Visibility.Visible 
    }
}

在该struct中 AssociateSuggestionModel 数据结构具体定义如下

export class AssociateSuggestionModel {
    public status_code:number = 0;
    public status_msg:string = '';
    public data:QueryList = new QueryList(0,[],[]);

    constructor(status_code:number, status_msg:string,data:QueryList) {
        this.status_code= status_code;
        this.status_msg = status_msg;
        this.data = data;
    }
}

export class QueryList {
    public cost:number = 0;
    public fund?:Array<FundItem> = [];
    public query:Array<QueryItem> = [];

    constructor(cost:number, fund:Array<FundItem>, query:Array<QueryItem> ) {
        this.cost = cost;
        this.fund = fund;
        this.query = query;
    }
}