我将jsonplaceholder用作我的应用程序状态。当我遍历嵌套对象以显示时,我无法使其工作。例如,我拿了两个
state = {
post: [
{
id: 1,
name: "Leanne Graham",
username: "Bret",
email: "Sincere@april.biz",
address: {
street: "Kulas Light",
suite: "Apt. 556",
city: "Gwenborough",
zipcode: "92998-3874",
geo: {
lat: "-37.3159",
lng: "81.1496"
}
},
phone: "1-770-736-8031 x56442",
website: "hildegard.org",
company: {
name: "Romaguera-Crona",
catchPhrase: "Multi-layered client-server neural-net",
bs: "harness real-time e-markets"
}
},
{
id: 2,
name: "Ervin Howell",
username: "Antonette",
email: "Shanna@melissa.tv",
address: {
street: "Victor Plains",
suite: "Suite 879",
city: "Wisokyburgh",
zipcode: "90566-7771",
geo: {
lat: "-43.9509",
lng: "-34.4618"
}
},
phone: "010-692-6593 x09125",
website: "anastasia.net",
company: {
name: "Deckow-Crist",
catchPhrase: "Proactive didactic contingency",
bs: "synergize scalable supply-chains"
}
}
]
};
我使用了这种方法
class post extends Component {
state ={ … }
render() {
let nestedObj = null;
if (this.state.post) {
nestedObj = this.state.post.map(obj => {
Object.keys(obj.company).map(e => {
let company= `${obj.company[e]}`;
console.log(company);
return (
<ul>
<li>{company}</li>
</ul>
);
});
});
console.log(nestedObj);
}
return(
<p>{nestedObj}</p>
)
}
即使控制台将它登录到终端,它也不会显示在客户端上,但我尝试使用hasOwnProperty,它还给了我[object object]。其次,我注意到如果我分别使用Object.entries和forEach而不是object.keys和map对其进行管理但不显示它,哪种方法合适?
我的头衔是地址和公司。 预先感谢您的帮助。