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[英]How to determine what observable been changed in Observable.merge?
[英]When using Observable.merge HTTP requests are never getting called
我正在嘗試使用merge
運算符循環http請求。
服務:
addData(data) {
return this.http
.post(this.url, data)
.map(resp => {
return resp;
});
}
零件:
addData(data) {
if (data.length != 0) {
let respObs: Observable<Response>[] = [];
data.forEach(element => {
respObs.push(this.addService.addData(element));
});
Observable.merge(respObs)
.subscribe(resp => {
console.log(resp); // Observable object not the Response object is getting logged.
}, err => {
console.log(err);
});
}
}
使用的版本:
角度:4.3.5
RxJS:5.1.0
選中網絡控制台后,我看到從未進行過HTTP調用,並且記錄了Observable對象,而不是來自HTTP調用的響應。
對於Rxjs 5 ,您需要將Observables作為逗號分隔的列表傳遞。 嘗試這個:
Observable.merge(...respObs)
.subscribe(resp => {
console.log(resp); // Observable object not the Response object is getting logged.
}, err => {
console.log(err);
});
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