How to get a value from Observable

Question

I have a Observable of service data which return true or false value ,when call the servive which returns

 let m =this.myService.checkCapabilityOf(constantvalue);
console.log(m);

below format

Here in the observable value it return false, I need to get the value so i have subscribe the observable.

let m =this.myService.checkCapabilityOf(constantvalue).subscribe(value => value);
console.log(m);

But it returns below format , howto get a value from observable

You put the access to the value **inside the callback**, where you have it. — jonrsharpe, Sep 12 '18 at 19:33
@johnSharp why it is not showing in scope variable after subscribe — Mohamed Sahir, Sep 12 '18 at 19:40
What do you mean *"in scope variable"*? I'd strongly recommend reading up on the basics of async. — jonrsharpe, Sep 12 '18 at 19:43

score 0 · Answer 1 · answered Sep 12 '18 at 20:42

Use the following code to get the value from Observable subscribe.

let m;
this.myService.checkCapabilityOf(constantvalue).subscribe(value =>{ 
 m = value
 console.log(value);

});

Remember that it is an async call then you can not get the value from out site of the subscribe. you can save the reference or get a copy of the object but just until the subscribe responses you will get the value.

How to get a value from Observable

1 Answers1