我想做以下几件事,并记住它实际上对我有用.我的问题是会发生什么,是否可以从非异步componentDidMount()
func调用async usrs()
func?
let outState = {};
class A extends Component{
componentDidMount(){
this.usrs(usrs);
}
getData(usr){
return db.collection('a/'+usr+'/bb').get().then(snap=>{
for(i = snap.docs.length-1; i>=0; i--){
outState[usr] = [...outState[usr], snap.docs[i].data()];
if(i === 0) return outState;
}
return false;
});
}
async usrs(usrs){
let os = {}, data = {};
for(i = usrs.length-1; i>=0; i--){
os = await this.getData(usrs[i]);
if(os){
data = { ...data, ...os };
if (i === 0) {
this.setState({ ...this.state, ...data });
}
}
}
}
}