Typescript：如何将类及其成员分配为接口属性之一

Question

在类型脚本中，我有一个接口和一个类。

接口的属性之一就是类本身。如何将类及其成员分配为接口的属性之一？

export interface ITest {
  _Id: string;
  _UserName: string;
   ***Criteria: Need to assign the class MyCriteria to this interface's property "Criteria"***
}

export class MyCriteria 
{
  _Name: string = "department";
  _Codes: string[]; // String array

  constructor(Name: string, Codes: string[]) {
    this._Name= Name;
   this._Codes= Codes;
  }
}

Answer 1

您可以只使用MyCriteria 作为类型。

export interface ITest {
  _Id: string;
  _UserName: string;
   Criteria: MyCriteria
}

export class MyCriteria 
{
  _Name: string = "department";
  _Codes: string[]; // String array

  constructor(Name: string, Codes: string[]) {
    this._Name= Name;
   this._Codes= Codes;
  }
}

const test: ITest = {
    _Id: "",
    _UserName: "",
    Criteria: new MyCriteria("",[""])
}

test.Criteria._Codes = ["new codes"];