Question

我正在做类似的事情：

class ProblemAnswersModel extends Backbone.Model {
    parse(response) {
        this.relations = {"interventions" : Backbone.Collection};
        this.set(response);
    }
}

但我想这样做：

class ProblemAnswersModel extends Backbone.Model {
    this.relations = {"interventions" : Backbone.Collection};
    parse(response) {
        this.set(response);
    }
}

我试过

class ProblemAnswersModel extends Backbone.Model {
    relations = {"interventions" : Backbone.Collection};
    parse(response) {
        this.set(response);
    }
}

但这似乎创建了一个单独的变量，而不是使用底层骨干变量。

Answer 1

如果你的意思是Backbone.Collection而不是构造函数，你应该像这样声明relations：

class ProblemAnswersModel extends Backbone.Model {
    relations: { "interventions" : Backbone.Collection };

    parse(response) {
        this.relations = { "interventions" : someBackboneCollectionInstance };
        this.set(response);
    }
}

如果你想为原型添加关系：

ProblemAnswersModel.prototype.relations = ...

覆盖TypeScript中的值

1 个答案: