我从Firestore获取文档,它正在工作:
this.sub = this.beluginService.getBeluginById(this.personId)
.subscribe((documentSnapshot: firebase.firestore.DocumentSnapshot) => {
console.log(documentSnapshot.data());
}
我的服务:
getBeluginById(id: string) {
return this.afs.collection('belugin').doc(id).get();
}
在console.log中,我得到一个对象:
{ id: "ya1jibU2pZx1niGiuAmp"
qwCF: [0, 0, 2, 0, 0, 6, 2]
qwCO: [0, 0, 0, 0, 2, 0, 0]
qwIMP: [10, 0, 2, 2, 2, 4, 0]
qwME: [0, 4, 0, 4, 2, 0, 0]
qwPL: [0, 0, 0, 0, 0, 0, 0]
qwRI: [0, 2, 2, 2, 2, 0, 0]
qwSH: [0, 0, 0, 0, 0, 0, 0]
qwTW: [0, 4, 4, 2, 2, 0, 8] }
但是当我尝试获取对象属性(例如id,qwCF)时:
this.sub = this.beluginService.getBeluginById(this.personId)
.subscribe((documentSnapshot: firebase.firestore.DocumentSnapshot) => {
this.id = documentSnapshot.data().id;
this.qwCF = documentSnapshot.data().qwCF;
}
我无法获取data()属性。...我的VCCode显示方法data()调用错误。为什么?
答案 0 :(得分:2)
如果documentSnapshot.data()
在日志中起作用,也许可以从中获取数据,那就更好了:
const data = documentSnapshot.data();
this.id = data.id
可能取决于ECMA版本
this.id = data["id"];