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如何僅用mergeAll運算符發出已解析的promise。如何僅用Rxjs發出已解析的值5 mergeAll運算符
var s1 = Rx.Observable.from([1,3,2])
var s2 = Rx.Observable.from([4,5,6])
var samplePromise = val => new Promise((resolve,reject)=>{
setTimeout(()=> {if(val==3) reject(new Error(val)); else resolve(val);},val*1000)});
var mergedSource= Rx.Observable.merge(s1,s2)
.map(val => samplePromise(val))
.mergeAll()
.catch(err=>console.log('err' , err))
var subscribeTwo = mergedSource.subscribe(val => console.log('Example:', val));
在這個例子中,當val = 3拋出錯誤並且不發出其他錯誤。 如何跳過被拒絕的承諾,我想只發出已解決的承諾價值。