提示:本站收集StackOverFlow近2千万问答，支持中英文搜索，鼠标放在语句上弹窗显示对应的参考中文或英文， 本站还提供 中文繁体 英文版本 中英对照 版本，有任何建议请联系yoyou2525@163.com。
所以我有一个包含一组字符串的枚举
export enum apiErrors {
INVALID_SHAPE = "INVALID_SHAPE",
NOT_FOUND = "NOT_FOUND",
EXISTS = "EXISTS",
INVALID_AUTH = "INVALID_AUTH",
INTERNAL_SERVER_ERROR = "INTERNAL_SERVER_ERROR"
}
我定义了如下界面
export interface IApiResponse {
status: boolean;
payload: any;
errorCode?: string; // I want this to be "INVALID_SHAPE" | "NOT_FOUND" and so on...
}
我知道我可以像"INVALID_SHAPE" | "NOT_FOUND" ...一样定义"INVALID_SHAPE" | "NOT_FOUND" ... "INVALID_SHAPE" | "NOT_FOUND" ...
但是，是否有一种方法可以将枚举结构分解为errorCode ，使其只能接受这些字符串之一？
如@JBNizet和@AviadP所述，只需将errorCode设置为apiErrors枚举即可。 Typescript将自动确保实现IApiResponse接口的所有内容都将errorCode设置为这些值之一。
export enum apiErrors {
INVALID_SHAPE = "INVALID_SHAPE",
NOT_FOUND = "NOT_FOUND",
EXISTS = "EXISTS",
INVALID_AUTH = "INVALID_AUTH",
INTERNAL_SERVER_ERROR = "INTERNAL_SERVER_ERROR"
}
export interface IApiResponse {
status: boolean;
payload: any;
errorCode?: apiErrors // this is the change
}
// this would now be invalid
const invalidResponse: IApiResponse = {
status: false,
payload: {foo: 'bar'},
errorCode: 'something not in the enum',
};
// this is valid
const validResponse: IApiResponse = {
status: false,
payload: {foo: 'bar'},
errorCode: apiErrors.INVALID_SHAPE,
};
// this is also valid
const anotherValidResponse: IApiResponse = {
status: true,
payload: {foo: 'bar'},
// errorCode isn't included at all
};
声明：本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.