我是Typescript的新手，我试图在Typescript中创建状态机。 我不确定我的语法是否正确，但是却出现此错误： 类型“ HTMLElement”上不存在“属性”商店

类测试{

private $componentSelector: JQuery;
private $radioButtons: JQuery;
private store: Object;

constructor($theComponentSelector: JQuery) {
    this.$componentSelector = $theComponentSelector;
    this.$radioButtons = this.$componentSelector.find('.radio-button');
    this.store = {
        selectionType: ''
    }
    this.test();
}

test() {
    this.$radioButtons.on('click',function(){
      this.store.selctionType = $(this).val();  
    });
}

}