我有一个函数,我希望它能够传递普通参数和关键字(命名)参数。然而,每当我尝试重载时,我得到一个错误。
我试着这样重载函数:
function myFunc({name, surname, age}: myFuncParams): string;
function myFunc(name: string, surname?: string, age?: number): string;
function myFunc(nameOrObj: string | myFuncParams, surname?: string, age?: number): string {
// do something and return a string
return ""
};
其中:
interface myFuncParams {
name: string,
surname?: string,
age?: number
}
当然这是一个更复杂的例子的简化;但这里的想法是能够传递姓名和年龄,例如;而无需更改姓氏或执行以下操作:
myFunc("Foo", null, 111);
只是在做:
myFunc({name:"Foo", age:111});
出现以下错误:
function myFunc({name, surname?, age?}: myFuncParams): string;
// ^: This overload signature is not compatible with its implementation signature. (2394)
function myFunc(name: string, surname?: string, age?: number): string;
function myFunc(nameOrObj: string | myFuncParams, surname?: string, age?: number): string {
// do something and return a string
return ""
};
typescript Playground链接:
编辑:正如@jonrsharpe指出的:
function myFunc({name, surname, age}: myFuncParams): string;
function myFunc(name: string, surname?: string, age?: number): string;
function myFunc(nameOrObj: string | myFuncParams,surname?: string,age?: number): string {
return ""
};
忘记在最终声明中将姓氏和年龄标记为可选。
1条答案
按热度按时间wlsrxk511#
试试这边