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//这里的age不能是可选的,因为propName: string interface Person { name: string; age?: number; [propName: string]: string | number; }
The text was updated successfully, but these errors were encountered:
// 因为可选属性 涉及到 undefined propName 因缺少了 undefined 而报错
interface Person { name: string; age?: number; [propName: string]: string | number | undefined; }
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//这里的age不能是可选的,因为propName: string
interface Person {
name: string;
age?: number;
[propName: string]: string | number;
}
The text was updated successfully, but these errors were encountered: