如何将Java枚举转换为Typescript枚举

Question

我有一个像Java一样的Enum设置：

public enum ObjectType implements Serializable{

    TABLE(0,"TABLE"),
    VIEW(1,"VIEW");

    private int objectType;
    private String description; 
    private String sqlType;

    ObjectType(int objectType, String description, String sqlType) {
        this.objectType = objectType;
        this.description = description;
        this.sqlType = sqlType;
    }
}

我想设置一个等效的Typescript Enum，我这样做了：

export enum ObjectType {
    TABLE,
    VIEW
}

export namespace ObjectType {

    export function getType(description : string): ObjectType {
        if(description.toUpperCase() === "TABLE") {
            return ObjectType.TABLE;
        } else if(description.toUpperCase() === "VIEW") {
            return ObjectType.VIEW;
        } else {
            return null;
        }
    }

    export function getObjectType(objectType: ObjectType): string {
        switch(objectType) {
            case ObjectType.TABLE:
                return "TABLE";
            case ObjectType.VIEW:
                return "VIEW";
        }
    }
}

我的问题是，我可以创建一个构造函数函数，它在Typescript中也有一个描述和sqlType吗？

Answer 1

我不完全确定你是否可以使用打字稿枚举来做到这一点，但这些内容应该有效：

class MyEnum{

  public static readonly ONE=new MyEnum(1, "Single-Digit");
  public static readonly TWO=new MyEnum(200, "Multi-Digit");

  public readonly index: number
  public readonly type: string

  private constructor(index:number, type: string){
    this.index=index;
    this.type=type;
  }
}

据我所知，打字稿枚举基本上转换为数字，所以这可能是唯一的方法。