Ngrx: Is it possible partially using async pipe?












0















I am wondering if it's possible partially using async pipe while I use ngrx stroe.



For example,



// ts file
this.name$ = this.store.pipe(
select(SOME.STATE),
map((item) => {
return item.name;
})
)

// html file
<p>{{name$ | async}}</p>


It's simple, but what if I need



// ts file
this.store.pipe(
select(SOME.STATE),
)
.subscribe(item => {
this.name = item.name;
this.age = item.age // <-
})

someMethod() {
const age = this.age;
// ...some processes using 'age' data which from store
}

// html file
<p>{{name}}</p>


Like above, if I have multiple data and I have to do some post-process( such as someMethod() ), I am not sure how to handle async pipe.
No more async pipe means also I have to unsubscribe manually which make more verbose code.



I have tried the below



// ts file
this.name$ = this.store.pipe(
select(SOME.STATE),
map((item) => {
return item.name;
})
)

this.store.pipe(
select(SOME.STATE),
)
.subscribe(item => {
this.age = item.age
})

someMethod() {
const age = this.age;
// ...some processes using 'age' data which from store
}


// html file
<p>{{name$ | async}}</p>


Working but I am wondering if there is better way.



Thanks.










share|improve this question























  • Do you intend to do some process on age for example and show it in the template?

    – jal
    Jan 2 at 23:14











  • In your examples you only use name in the template. Can you clarify?

    – jal
    Jan 2 at 23:25











  • .subscribe(value => this.value = value) is never a good thing.

    – cgTag
    Jan 3 at 3:44
















0















I am wondering if it's possible partially using async pipe while I use ngrx stroe.



For example,



// ts file
this.name$ = this.store.pipe(
select(SOME.STATE),
map((item) => {
return item.name;
})
)

// html file
<p>{{name$ | async}}</p>


It's simple, but what if I need



// ts file
this.store.pipe(
select(SOME.STATE),
)
.subscribe(item => {
this.name = item.name;
this.age = item.age // <-
})

someMethod() {
const age = this.age;
// ...some processes using 'age' data which from store
}

// html file
<p>{{name}}</p>


Like above, if I have multiple data and I have to do some post-process( such as someMethod() ), I am not sure how to handle async pipe.
No more async pipe means also I have to unsubscribe manually which make more verbose code.



I have tried the below



// ts file
this.name$ = this.store.pipe(
select(SOME.STATE),
map((item) => {
return item.name;
})
)

this.store.pipe(
select(SOME.STATE),
)
.subscribe(item => {
this.age = item.age
})

someMethod() {
const age = this.age;
// ...some processes using 'age' data which from store
}


// html file
<p>{{name$ | async}}</p>


Working but I am wondering if there is better way.



Thanks.










share|improve this question























  • Do you intend to do some process on age for example and show it in the template?

    – jal
    Jan 2 at 23:14











  • In your examples you only use name in the template. Can you clarify?

    – jal
    Jan 2 at 23:25











  • .subscribe(value => this.value = value) is never a good thing.

    – cgTag
    Jan 3 at 3:44














0












0








0








I am wondering if it's possible partially using async pipe while I use ngrx stroe.



For example,



// ts file
this.name$ = this.store.pipe(
select(SOME.STATE),
map((item) => {
return item.name;
})
)

// html file
<p>{{name$ | async}}</p>


It's simple, but what if I need



// ts file
this.store.pipe(
select(SOME.STATE),
)
.subscribe(item => {
this.name = item.name;
this.age = item.age // <-
})

someMethod() {
const age = this.age;
// ...some processes using 'age' data which from store
}

// html file
<p>{{name}}</p>


Like above, if I have multiple data and I have to do some post-process( such as someMethod() ), I am not sure how to handle async pipe.
No more async pipe means also I have to unsubscribe manually which make more verbose code.



I have tried the below



// ts file
this.name$ = this.store.pipe(
select(SOME.STATE),
map((item) => {
return item.name;
})
)

this.store.pipe(
select(SOME.STATE),
)
.subscribe(item => {
this.age = item.age
})

someMethod() {
const age = this.age;
// ...some processes using 'age' data which from store
}


// html file
<p>{{name$ | async}}</p>


Working but I am wondering if there is better way.



Thanks.










share|improve this question














I am wondering if it's possible partially using async pipe while I use ngrx stroe.



For example,



// ts file
this.name$ = this.store.pipe(
select(SOME.STATE),
map((item) => {
return item.name;
})
)

// html file
<p>{{name$ | async}}</p>


It's simple, but what if I need



// ts file
this.store.pipe(
select(SOME.STATE),
)
.subscribe(item => {
this.name = item.name;
this.age = item.age // <-
})

someMethod() {
const age = this.age;
// ...some processes using 'age' data which from store
}

// html file
<p>{{name}}</p>


Like above, if I have multiple data and I have to do some post-process( such as someMethod() ), I am not sure how to handle async pipe.
No more async pipe means also I have to unsubscribe manually which make more verbose code.



I have tried the below



// ts file
this.name$ = this.store.pipe(
select(SOME.STATE),
map((item) => {
return item.name;
})
)

this.store.pipe(
select(SOME.STATE),
)
.subscribe(item => {
this.age = item.age
})

someMethod() {
const age = this.age;
// ...some processes using 'age' data which from store
}


// html file
<p>{{name$ | async}}</p>


Working but I am wondering if there is better way.



Thanks.







angular ngrx ngrx-store






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Jan 2 at 23:11









TéwaTéwa

1571316




1571316













  • Do you intend to do some process on age for example and show it in the template?

    – jal
    Jan 2 at 23:14











  • In your examples you only use name in the template. Can you clarify?

    – jal
    Jan 2 at 23:25











  • .subscribe(value => this.value = value) is never a good thing.

    – cgTag
    Jan 3 at 3:44



















  • Do you intend to do some process on age for example and show it in the template?

    – jal
    Jan 2 at 23:14











  • In your examples you only use name in the template. Can you clarify?

    – jal
    Jan 2 at 23:25











  • .subscribe(value => this.value = value) is never a good thing.

    – cgTag
    Jan 3 at 3:44

















Do you intend to do some process on age for example and show it in the template?

– jal
Jan 2 at 23:14





Do you intend to do some process on age for example and show it in the template?

– jal
Jan 2 at 23:14













In your examples you only use name in the template. Can you clarify?

– jal
Jan 2 at 23:25





In your examples you only use name in the template. Can you clarify?

– jal
Jan 2 at 23:25













.subscribe(value => this.value = value) is never a good thing.

– cgTag
Jan 3 at 3:44





.subscribe(value => this.value = value) is never a good thing.

– cgTag
Jan 3 at 3:44












1 Answer
1






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oldest

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0














Use the tap operator to do that instead of subscribing.



this.name$ = this.store.pipe(
select(SOME.STATE),
tap(item => this.age = item.age),
map((item) => {
return item.name;
}));


There's still really no reason to do it this way though. Instead you should simply have another observable for example age$.






share|improve this answer
























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    0














    Use the tap operator to do that instead of subscribing.



    this.name$ = this.store.pipe(
    select(SOME.STATE),
    tap(item => this.age = item.age),
    map((item) => {
    return item.name;
    }));


    There's still really no reason to do it this way though. Instead you should simply have another observable for example age$.






    share|improve this answer




























      0














      Use the tap operator to do that instead of subscribing.



      this.name$ = this.store.pipe(
      select(SOME.STATE),
      tap(item => this.age = item.age),
      map((item) => {
      return item.name;
      }));


      There's still really no reason to do it this way though. Instead you should simply have another observable for example age$.






      share|improve this answer


























        0












        0








        0







        Use the tap operator to do that instead of subscribing.



        this.name$ = this.store.pipe(
        select(SOME.STATE),
        tap(item => this.age = item.age),
        map((item) => {
        return item.name;
        }));


        There's still really no reason to do it this way though. Instead you should simply have another observable for example age$.






        share|improve this answer













        Use the tap operator to do that instead of subscribing.



        this.name$ = this.store.pipe(
        select(SOME.STATE),
        tap(item => this.age = item.age),
        map((item) => {
        return item.name;
        }));


        There's still really no reason to do it this way though. Instead you should simply have another observable for example age$.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Jan 3 at 4:23









        ChristianChristian

        1,168714




        1,168714
































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