在JSON响应离子中获取数组索引值

Question

我有这个函数这个API JSON响应（Github API）

[
  {
    "id": 1,
    "name": "grit",
    "full_name": "mojombo/grit",
    "owner": {
      "login": "mojombo",
      "id": 1,
      "avatar_url": "https://avatars3.githubusercontent.com/u/1?v=3",
      "gravatar_id": "",
      "url": "https://api.github.com/users/mojombo",
      "html_url": "https://github.com/mojombo",
      "followers_url": "https://api.github.com/users/mojombo/followers",
      "following_url": "https://api.github.com/users/mojombo/following{/other_user}",
      "gists_url": "https://api.github.com/users/mojombo/gists{/gist_id}",
      "starred_url": "https://api.github.com/users/mojombo/starred{/owner}{/repo}",
      "subscriptions_url": "https://api.github.com/users/mojombo/subscriptions",
      "organizations_url": "https://api.github.com/users/mojombo/orgs",
      "repos_url": "https://api.github.com/users/mojombo/repos",
      "events_url": "https://api.github.com/users/mojombo/events{/privacy}",
      "received_events_url": "https://api.github.com/users/mojombo/received_events",
      "type": "User",
      "site_admin": false
    },
    "private": false,
    "html_url": "https://github.com/mojombo/grit",
    "description": "**Grit is no longer maintained. Check out libgit2/rugged.** Grit gives you object oriented read/write access to Git repositories via Ruby.",
    "fork": false,
...

    }
]

在这个函数中，我想将owner.login元素传递给我的函数gotoDetails。有没有简单的方法呢？我尝试了repo.owner.login和repo.owner['login']。

<ion-content padding>
  <ion-list>
    <ion-card *ngFor="let repo of repos" (click)="goToDetails(repo.name, repo.owner['login'])">
      <ion-card-header>
        {{ repo.name }}
      </ion-card-header>
      <ion-card-content>
        {{ repo.description }}
      </ion-card-content>
      <ion-icon name="arrow-forward" item-right></ion-icon>
    </ion-card>
  </ion-list>
</ion-content>

回购模式：

import { User } from '../models/users';

export interface Repos {
    name: string,
    full_name: string,
    owner: User, 
    private: boolean,
    html_url: string,
    description: string,
    fork: boolean,
    url: string
}