CODEWITHSUNDEEP
angulartypescript
JoJo123
JoJo123

Reputation: 21

Concat two (or more) Observables and put in an array in TypeScript

I've two oberservables in my typescript:

ob_oj and ob_oj2.

I concat the two observables like this:

Observable.concat(ob_oj,ob_oj2).subscribe(res=>{this.detailSatz=res;})

detailSatz is an Array from type any - I want to access to both results of ob_oj and ob_oj2 via detailSatz in my HTML. But the results in the Array detailSatz were overrided, so I only get the results of ob_oj2.

What am I doing wrong here? Is there a solution for a multiple number of observables? (An Array of observables)

Thanks in advance.

Upvotes: 1

Views: 610

Answers (1)

Suryan
Suryan

Reputation: 659

You can use forkJoin and is best used when you have a group of observables and only care about the final emitted value of each. Try something like

var result = forkJoin([ob_oj, ob_oj2]).subscribe(
   result => console.log(result)
// result[0] is ob_oj
// result[1] is ob_oj2
)

Refer documentation: https://www.learnrxjs.io/operators/combination/forkjoin.html

Upvotes: 1

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