angular - 在类型接口打字稿中使用 OR

Question

我有一个数组，其中每个索引项都可以是IBusinessDetailCompetitor或ICustomerCompetitorInstant

所以我能做点什么吗
customerCompititorArray: (IBusinessDetailCompetitor[] | ICustomerCompetitorInstant[])

但这会出错。请帮忙。

标签： angulartypescript

Answer 1

数组中的项目应该是联合类型：

interface IBusinessDetailCompetitor {
    a: string
}
interface ICustomerCompetitorInstant {
    b: string
}

const customerCompititorArrayCorrect: Array<IBusinessDetailCompetitor | ICustomerCompetitorInstant> = [{a: '1'}, {b: '2'}]

参见TypeScript Playground