Cannot read property 'id' of undefined UsersReportingComponent.html












0















users.reporting.component.html:



<div class="container"

<form (ngSubmit)="processForm()">

<div class="form group" >
<label for="id">Id</label>
<input type="text" name="id" class="form-control" [(ngModel)]="user.id">
</div>
<div class="form group">
<label for="name">Full Name</label>
<input type="text" name="name" class="form-control" [(ngModel)]="user.name">
</div>

<div class="form group">
<label for="email">Email</label>
<input type="email" name="email" class="form-control" [(ngModel)]="user.email">
</div>
<div class="form group">
<label for="date">Joining Date</label>
<input type="date" name="date" class="form-control" [(ngModel)]="user.date">
</div>
<div class="form group">
<label for="address">Addrress</label>
<input type="text" name="address" class="form-control" [(ngModel)]="user.address">
</div>

<div class="form group">
<label for="status">Status</label>
<input type="text" name="status" class="form-control" [(ngModel)]="user.status">
</div>

<input type="submit" value="save" class="btn btn-success">
</form>
</div>


users.reporting.component.ts:



import { Component, OnInit } from '@angular/core';
import { User } from 'src/app/user';
import { UserService } from 'src/app/shared_service/user.service';
import { Router } from '@angular/router';

@Component({
selector: 'app-users-reporting',
templateUrl: './users-reporting.component.html',
styleUrls: ['./users-reporting.component.css']
})
export class UsersReportingComponent implements OnInit {
private user: User;

constructor(private _userService: UserService, private _router: Router) { }

ngOnInit() {
this.user = this._userService.getter();
}
processForm() {
if (this.user.id == undefined) {
this._userService.createUser(this.user).subscribe((user) => {
console.log(user);
this._router.navigate(['/user-listing']);
}, (error) => {
console.log(error);
});
} else {
this._userService.updateUser(this.user).subscribe((user) => {
console.log(user);
this._router.navigate(['/user-listing']);
}, (error) => {
console.log(error);
});
}
}
}


Please help me out... I have an error in my project, the error is like this:




ERROR TypeError: Cannot read property 'id' of undefined

at Object.eval [as updateDirectives] (UsersReportingComponent.html:53)

at Object.debugUpdateDirectives

at checkAndUpdateView

at callViewAction

at execComponentViewsAction

at checkAndUpdateView

at callViewAction

at execEmbeddedViewsAction

at checkAndUpdateView

at callViewAction











share|improve this question

























  • Are you sure you have a user?

    – Frank Modica
    Nov 14 '18 at 14:33











  • user?.id try making the id optional.

    – Jai
    Nov 14 '18 at 14:35











  • yeah! i have a user

    – Rohit Prajapati
    Nov 14 '18 at 14:40











  • i have tried this user?.id ..but the still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:41











  • Your user is private make it public.

    – Jai
    Nov 14 '18 at 14:43
















0















users.reporting.component.html:



<div class="container"

<form (ngSubmit)="processForm()">

<div class="form group" >
<label for="id">Id</label>
<input type="text" name="id" class="form-control" [(ngModel)]="user.id">
</div>
<div class="form group">
<label for="name">Full Name</label>
<input type="text" name="name" class="form-control" [(ngModel)]="user.name">
</div>

<div class="form group">
<label for="email">Email</label>
<input type="email" name="email" class="form-control" [(ngModel)]="user.email">
</div>
<div class="form group">
<label for="date">Joining Date</label>
<input type="date" name="date" class="form-control" [(ngModel)]="user.date">
</div>
<div class="form group">
<label for="address">Addrress</label>
<input type="text" name="address" class="form-control" [(ngModel)]="user.address">
</div>

<div class="form group">
<label for="status">Status</label>
<input type="text" name="status" class="form-control" [(ngModel)]="user.status">
</div>

<input type="submit" value="save" class="btn btn-success">
</form>
</div>


users.reporting.component.ts:



import { Component, OnInit } from '@angular/core';
import { User } from 'src/app/user';
import { UserService } from 'src/app/shared_service/user.service';
import { Router } from '@angular/router';

@Component({
selector: 'app-users-reporting',
templateUrl: './users-reporting.component.html',
styleUrls: ['./users-reporting.component.css']
})
export class UsersReportingComponent implements OnInit {
private user: User;

constructor(private _userService: UserService, private _router: Router) { }

ngOnInit() {
this.user = this._userService.getter();
}
processForm() {
if (this.user.id == undefined) {
this._userService.createUser(this.user).subscribe((user) => {
console.log(user);
this._router.navigate(['/user-listing']);
}, (error) => {
console.log(error);
});
} else {
this._userService.updateUser(this.user).subscribe((user) => {
console.log(user);
this._router.navigate(['/user-listing']);
}, (error) => {
console.log(error);
});
}
}
}


Please help me out... I have an error in my project, the error is like this:




ERROR TypeError: Cannot read property 'id' of undefined

at Object.eval [as updateDirectives] (UsersReportingComponent.html:53)

at Object.debugUpdateDirectives

at checkAndUpdateView

at callViewAction

at execComponentViewsAction

at checkAndUpdateView

at callViewAction

at execEmbeddedViewsAction

at checkAndUpdateView

at callViewAction











share|improve this question

























  • Are you sure you have a user?

    – Frank Modica
    Nov 14 '18 at 14:33











  • user?.id try making the id optional.

    – Jai
    Nov 14 '18 at 14:35











  • yeah! i have a user

    – Rohit Prajapati
    Nov 14 '18 at 14:40











  • i have tried this user?.id ..but the still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:41











  • Your user is private make it public.

    – Jai
    Nov 14 '18 at 14:43














0












0








0


1






users.reporting.component.html:



<div class="container"

<form (ngSubmit)="processForm()">

<div class="form group" >
<label for="id">Id</label>
<input type="text" name="id" class="form-control" [(ngModel)]="user.id">
</div>
<div class="form group">
<label for="name">Full Name</label>
<input type="text" name="name" class="form-control" [(ngModel)]="user.name">
</div>

<div class="form group">
<label for="email">Email</label>
<input type="email" name="email" class="form-control" [(ngModel)]="user.email">
</div>
<div class="form group">
<label for="date">Joining Date</label>
<input type="date" name="date" class="form-control" [(ngModel)]="user.date">
</div>
<div class="form group">
<label for="address">Addrress</label>
<input type="text" name="address" class="form-control" [(ngModel)]="user.address">
</div>

<div class="form group">
<label for="status">Status</label>
<input type="text" name="status" class="form-control" [(ngModel)]="user.status">
</div>

<input type="submit" value="save" class="btn btn-success">
</form>
</div>


users.reporting.component.ts:



import { Component, OnInit } from '@angular/core';
import { User } from 'src/app/user';
import { UserService } from 'src/app/shared_service/user.service';
import { Router } from '@angular/router';

@Component({
selector: 'app-users-reporting',
templateUrl: './users-reporting.component.html',
styleUrls: ['./users-reporting.component.css']
})
export class UsersReportingComponent implements OnInit {
private user: User;

constructor(private _userService: UserService, private _router: Router) { }

ngOnInit() {
this.user = this._userService.getter();
}
processForm() {
if (this.user.id == undefined) {
this._userService.createUser(this.user).subscribe((user) => {
console.log(user);
this._router.navigate(['/user-listing']);
}, (error) => {
console.log(error);
});
} else {
this._userService.updateUser(this.user).subscribe((user) => {
console.log(user);
this._router.navigate(['/user-listing']);
}, (error) => {
console.log(error);
});
}
}
}


Please help me out... I have an error in my project, the error is like this:




ERROR TypeError: Cannot read property 'id' of undefined

at Object.eval [as updateDirectives] (UsersReportingComponent.html:53)

at Object.debugUpdateDirectives

at checkAndUpdateView

at callViewAction

at execComponentViewsAction

at checkAndUpdateView

at callViewAction

at execEmbeddedViewsAction

at checkAndUpdateView

at callViewAction











share|improve this question
















users.reporting.component.html:



<div class="container"

<form (ngSubmit)="processForm()">

<div class="form group" >
<label for="id">Id</label>
<input type="text" name="id" class="form-control" [(ngModel)]="user.id">
</div>
<div class="form group">
<label for="name">Full Name</label>
<input type="text" name="name" class="form-control" [(ngModel)]="user.name">
</div>

<div class="form group">
<label for="email">Email</label>
<input type="email" name="email" class="form-control" [(ngModel)]="user.email">
</div>
<div class="form group">
<label for="date">Joining Date</label>
<input type="date" name="date" class="form-control" [(ngModel)]="user.date">
</div>
<div class="form group">
<label for="address">Addrress</label>
<input type="text" name="address" class="form-control" [(ngModel)]="user.address">
</div>

<div class="form group">
<label for="status">Status</label>
<input type="text" name="status" class="form-control" [(ngModel)]="user.status">
</div>

<input type="submit" value="save" class="btn btn-success">
</form>
</div>


users.reporting.component.ts:



import { Component, OnInit } from '@angular/core';
import { User } from 'src/app/user';
import { UserService } from 'src/app/shared_service/user.service';
import { Router } from '@angular/router';

@Component({
selector: 'app-users-reporting',
templateUrl: './users-reporting.component.html',
styleUrls: ['./users-reporting.component.css']
})
export class UsersReportingComponent implements OnInit {
private user: User;

constructor(private _userService: UserService, private _router: Router) { }

ngOnInit() {
this.user = this._userService.getter();
}
processForm() {
if (this.user.id == undefined) {
this._userService.createUser(this.user).subscribe((user) => {
console.log(user);
this._router.navigate(['/user-listing']);
}, (error) => {
console.log(error);
});
} else {
this._userService.updateUser(this.user).subscribe((user) => {
console.log(user);
this._router.navigate(['/user-listing']);
}, (error) => {
console.log(error);
});
}
}
}


Please help me out... I have an error in my project, the error is like this:




ERROR TypeError: Cannot read property 'id' of undefined

at Object.eval [as updateDirectives] (UsersReportingComponent.html:53)

at Object.debugUpdateDirectives

at checkAndUpdateView

at callViewAction

at execComponentViewsAction

at checkAndUpdateView

at callViewAction

at execEmbeddedViewsAction

at checkAndUpdateView

at callViewAction








angular






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 16 '18 at 14:50









lagom

1




1










asked Nov 14 '18 at 14:32









Rohit PrajapatiRohit Prajapati

84




84













  • Are you sure you have a user?

    – Frank Modica
    Nov 14 '18 at 14:33











  • user?.id try making the id optional.

    – Jai
    Nov 14 '18 at 14:35











  • yeah! i have a user

    – Rohit Prajapati
    Nov 14 '18 at 14:40











  • i have tried this user?.id ..but the still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:41











  • Your user is private make it public.

    – Jai
    Nov 14 '18 at 14:43



















  • Are you sure you have a user?

    – Frank Modica
    Nov 14 '18 at 14:33











  • user?.id try making the id optional.

    – Jai
    Nov 14 '18 at 14:35











  • yeah! i have a user

    – Rohit Prajapati
    Nov 14 '18 at 14:40











  • i have tried this user?.id ..but the still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:41











  • Your user is private make it public.

    – Jai
    Nov 14 '18 at 14:43

















Are you sure you have a user?

– Frank Modica
Nov 14 '18 at 14:33





Are you sure you have a user?

– Frank Modica
Nov 14 '18 at 14:33













user?.id try making the id optional.

– Jai
Nov 14 '18 at 14:35





user?.id try making the id optional.

– Jai
Nov 14 '18 at 14:35













yeah! i have a user

– Rohit Prajapati
Nov 14 '18 at 14:40





yeah! i have a user

– Rohit Prajapati
Nov 14 '18 at 14:40













i have tried this user?.id ..but the still same error

– Rohit Prajapati
Nov 14 '18 at 14:41





i have tried this user?.id ..but the still same error

– Rohit Prajapati
Nov 14 '18 at 14:41













Your user is private make it public.

– Jai
Nov 14 '18 at 14:43





Your user is private make it public.

– Jai
Nov 14 '18 at 14:43












3 Answers
3






active

oldest

votes


















0














You never set user:



export class UsersReportingComponent implements OnInit {
user: User = new User();

//...
}


Make sure to initialise your class fields before ngOnInit by setting it in the constructor or directly on the field, or use the ?. save navigation operator inside your template: [(ngModel)]="user?.id"



Also as stated in the comments, don't make your user field private, because otherwise the AOT compilation will fail






share|improve this answer


























  • i have tried this also ...but still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:39











  • I've updated my answer

    – PierreDuc
    Nov 14 '18 at 14:45











  • sir ..still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:54











  • @RohitPrajapati then you have not posted the entire template, the error seems to be at line 53 of your template. Or your userService.getter() is not returning a user but undefined

    – PierreDuc
    Nov 14 '18 at 14:56













  • sir this is at line 53: <input type="text" name="id" class="form-control" [(ngModel)]="user.id">

    – Rohit Prajapati
    Nov 14 '18 at 15:13





















0














It seems to me that you have to change this:



private user: User;


to this:



public user: User;


Private properties are only available inside the class but template is outside.






share|improve this answer
























  • thanks for respond sir...but i have still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:48











  • @RohitPrajapati then it looks like the other answer is the solution for your issue. Did you try that?

    – Jai
    Nov 14 '18 at 14:50











  • yes @Jai sir ...i have tried every solution but still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:54



















0














It looks like you are retrieving user data using this._userService.getter(); in ngOnInit(). You could use *ngIf to test whether the user has been loaded prior to rendering the form to avoid this error:



<form (ngSubmit)="processForm()" *ngIf="user">
// ...
</form>


Another option would be to simply initialize some default values like '' for string for the user object until the getter() has resolved:



user: User = {
id: 42,
name: '',
email: '',
// ... remaining properties
}


Also, are you sure you are using getter() correctly? Assuming your call is something along the lines of:



getter()
return this.http.get<User>('/some/api/url')
}


You'd consume that like:



ngOnInit() {
this._userService.getter().subcribe(user => this.user = user);
}


Hopefully that helps!






share|improve this answer


























  • getter(){ return this.user; }

    – Rohit Prajapati
    Nov 14 '18 at 15:05











  • ngOnInit() { this.user = this._userService.getter(); }

    – Rohit Prajapati
    Nov 14 '18 at 15:06











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3 Answers
3






active

oldest

votes








3 Answers
3






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














You never set user:



export class UsersReportingComponent implements OnInit {
user: User = new User();

//...
}


Make sure to initialise your class fields before ngOnInit by setting it in the constructor or directly on the field, or use the ?. save navigation operator inside your template: [(ngModel)]="user?.id"



Also as stated in the comments, don't make your user field private, because otherwise the AOT compilation will fail






share|improve this answer


























  • i have tried this also ...but still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:39











  • I've updated my answer

    – PierreDuc
    Nov 14 '18 at 14:45











  • sir ..still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:54











  • @RohitPrajapati then you have not posted the entire template, the error seems to be at line 53 of your template. Or your userService.getter() is not returning a user but undefined

    – PierreDuc
    Nov 14 '18 at 14:56













  • sir this is at line 53: <input type="text" name="id" class="form-control" [(ngModel)]="user.id">

    – Rohit Prajapati
    Nov 14 '18 at 15:13


















0














You never set user:



export class UsersReportingComponent implements OnInit {
user: User = new User();

//...
}


Make sure to initialise your class fields before ngOnInit by setting it in the constructor or directly on the field, or use the ?. save navigation operator inside your template: [(ngModel)]="user?.id"



Also as stated in the comments, don't make your user field private, because otherwise the AOT compilation will fail






share|improve this answer


























  • i have tried this also ...but still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:39











  • I've updated my answer

    – PierreDuc
    Nov 14 '18 at 14:45











  • sir ..still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:54











  • @RohitPrajapati then you have not posted the entire template, the error seems to be at line 53 of your template. Or your userService.getter() is not returning a user but undefined

    – PierreDuc
    Nov 14 '18 at 14:56













  • sir this is at line 53: <input type="text" name="id" class="form-control" [(ngModel)]="user.id">

    – Rohit Prajapati
    Nov 14 '18 at 15:13
















0












0








0







You never set user:



export class UsersReportingComponent implements OnInit {
user: User = new User();

//...
}


Make sure to initialise your class fields before ngOnInit by setting it in the constructor or directly on the field, or use the ?. save navigation operator inside your template: [(ngModel)]="user?.id"



Also as stated in the comments, don't make your user field private, because otherwise the AOT compilation will fail






share|improve this answer















You never set user:



export class UsersReportingComponent implements OnInit {
user: User = new User();

//...
}


Make sure to initialise your class fields before ngOnInit by setting it in the constructor or directly on the field, or use the ?. save navigation operator inside your template: [(ngModel)]="user?.id"



Also as stated in the comments, don't make your user field private, because otherwise the AOT compilation will fail







share|improve this answer














share|improve this answer



share|improve this answer








edited Nov 14 '18 at 14:44

























answered Nov 14 '18 at 14:36









PierreDucPierreDuc

29.9k55878




29.9k55878













  • i have tried this also ...but still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:39











  • I've updated my answer

    – PierreDuc
    Nov 14 '18 at 14:45











  • sir ..still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:54











  • @RohitPrajapati then you have not posted the entire template, the error seems to be at line 53 of your template. Or your userService.getter() is not returning a user but undefined

    – PierreDuc
    Nov 14 '18 at 14:56













  • sir this is at line 53: <input type="text" name="id" class="form-control" [(ngModel)]="user.id">

    – Rohit Prajapati
    Nov 14 '18 at 15:13





















  • i have tried this also ...but still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:39











  • I've updated my answer

    – PierreDuc
    Nov 14 '18 at 14:45











  • sir ..still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:54











  • @RohitPrajapati then you have not posted the entire template, the error seems to be at line 53 of your template. Or your userService.getter() is not returning a user but undefined

    – PierreDuc
    Nov 14 '18 at 14:56













  • sir this is at line 53: <input type="text" name="id" class="form-control" [(ngModel)]="user.id">

    – Rohit Prajapati
    Nov 14 '18 at 15:13



















i have tried this also ...but still same error

– Rohit Prajapati
Nov 14 '18 at 14:39





i have tried this also ...but still same error

– Rohit Prajapati
Nov 14 '18 at 14:39













I've updated my answer

– PierreDuc
Nov 14 '18 at 14:45





I've updated my answer

– PierreDuc
Nov 14 '18 at 14:45













sir ..still same error

– Rohit Prajapati
Nov 14 '18 at 14:54





sir ..still same error

– Rohit Prajapati
Nov 14 '18 at 14:54













@RohitPrajapati then you have not posted the entire template, the error seems to be at line 53 of your template. Or your userService.getter() is not returning a user but undefined

– PierreDuc
Nov 14 '18 at 14:56







@RohitPrajapati then you have not posted the entire template, the error seems to be at line 53 of your template. Or your userService.getter() is not returning a user but undefined

– PierreDuc
Nov 14 '18 at 14:56















sir this is at line 53: <input type="text" name="id" class="form-control" [(ngModel)]="user.id">

– Rohit Prajapati
Nov 14 '18 at 15:13







sir this is at line 53: <input type="text" name="id" class="form-control" [(ngModel)]="user.id">

– Rohit Prajapati
Nov 14 '18 at 15:13















0














It seems to me that you have to change this:



private user: User;


to this:



public user: User;


Private properties are only available inside the class but template is outside.






share|improve this answer
























  • thanks for respond sir...but i have still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:48











  • @RohitPrajapati then it looks like the other answer is the solution for your issue. Did you try that?

    – Jai
    Nov 14 '18 at 14:50











  • yes @Jai sir ...i have tried every solution but still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:54
















0














It seems to me that you have to change this:



private user: User;


to this:



public user: User;


Private properties are only available inside the class but template is outside.






share|improve this answer
























  • thanks for respond sir...but i have still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:48











  • @RohitPrajapati then it looks like the other answer is the solution for your issue. Did you try that?

    – Jai
    Nov 14 '18 at 14:50











  • yes @Jai sir ...i have tried every solution but still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:54














0












0








0







It seems to me that you have to change this:



private user: User;


to this:



public user: User;


Private properties are only available inside the class but template is outside.






share|improve this answer













It seems to me that you have to change this:



private user: User;


to this:



public user: User;


Private properties are only available inside the class but template is outside.







share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 14 '18 at 14:45









JaiJai

64.1k95480




64.1k95480













  • thanks for respond sir...but i have still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:48











  • @RohitPrajapati then it looks like the other answer is the solution for your issue. Did you try that?

    – Jai
    Nov 14 '18 at 14:50











  • yes @Jai sir ...i have tried every solution but still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:54



















  • thanks for respond sir...but i have still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:48











  • @RohitPrajapati then it looks like the other answer is the solution for your issue. Did you try that?

    – Jai
    Nov 14 '18 at 14:50











  • yes @Jai sir ...i have tried every solution but still same error

    – Rohit Prajapati
    Nov 14 '18 at 14:54

















thanks for respond sir...but i have still same error

– Rohit Prajapati
Nov 14 '18 at 14:48





thanks for respond sir...but i have still same error

– Rohit Prajapati
Nov 14 '18 at 14:48













@RohitPrajapati then it looks like the other answer is the solution for your issue. Did you try that?

– Jai
Nov 14 '18 at 14:50





@RohitPrajapati then it looks like the other answer is the solution for your issue. Did you try that?

– Jai
Nov 14 '18 at 14:50













yes @Jai sir ...i have tried every solution but still same error

– Rohit Prajapati
Nov 14 '18 at 14:54





yes @Jai sir ...i have tried every solution but still same error

– Rohit Prajapati
Nov 14 '18 at 14:54











0














It looks like you are retrieving user data using this._userService.getter(); in ngOnInit(). You could use *ngIf to test whether the user has been loaded prior to rendering the form to avoid this error:



<form (ngSubmit)="processForm()" *ngIf="user">
// ...
</form>


Another option would be to simply initialize some default values like '' for string for the user object until the getter() has resolved:



user: User = {
id: 42,
name: '',
email: '',
// ... remaining properties
}


Also, are you sure you are using getter() correctly? Assuming your call is something along the lines of:



getter()
return this.http.get<User>('/some/api/url')
}


You'd consume that like:



ngOnInit() {
this._userService.getter().subcribe(user => this.user = user);
}


Hopefully that helps!






share|improve this answer


























  • getter(){ return this.user; }

    – Rohit Prajapati
    Nov 14 '18 at 15:05











  • ngOnInit() { this.user = this._userService.getter(); }

    – Rohit Prajapati
    Nov 14 '18 at 15:06
















0














It looks like you are retrieving user data using this._userService.getter(); in ngOnInit(). You could use *ngIf to test whether the user has been loaded prior to rendering the form to avoid this error:



<form (ngSubmit)="processForm()" *ngIf="user">
// ...
</form>


Another option would be to simply initialize some default values like '' for string for the user object until the getter() has resolved:



user: User = {
id: 42,
name: '',
email: '',
// ... remaining properties
}


Also, are you sure you are using getter() correctly? Assuming your call is something along the lines of:



getter()
return this.http.get<User>('/some/api/url')
}


You'd consume that like:



ngOnInit() {
this._userService.getter().subcribe(user => this.user = user);
}


Hopefully that helps!






share|improve this answer


























  • getter(){ return this.user; }

    – Rohit Prajapati
    Nov 14 '18 at 15:05











  • ngOnInit() { this.user = this._userService.getter(); }

    – Rohit Prajapati
    Nov 14 '18 at 15:06














0












0








0







It looks like you are retrieving user data using this._userService.getter(); in ngOnInit(). You could use *ngIf to test whether the user has been loaded prior to rendering the form to avoid this error:



<form (ngSubmit)="processForm()" *ngIf="user">
// ...
</form>


Another option would be to simply initialize some default values like '' for string for the user object until the getter() has resolved:



user: User = {
id: 42,
name: '',
email: '',
// ... remaining properties
}


Also, are you sure you are using getter() correctly? Assuming your call is something along the lines of:



getter()
return this.http.get<User>('/some/api/url')
}


You'd consume that like:



ngOnInit() {
this._userService.getter().subcribe(user => this.user = user);
}


Hopefully that helps!






share|improve this answer















It looks like you are retrieving user data using this._userService.getter(); in ngOnInit(). You could use *ngIf to test whether the user has been loaded prior to rendering the form to avoid this error:



<form (ngSubmit)="processForm()" *ngIf="user">
// ...
</form>


Another option would be to simply initialize some default values like '' for string for the user object until the getter() has resolved:



user: User = {
id: 42,
name: '',
email: '',
// ... remaining properties
}


Also, are you sure you are using getter() correctly? Assuming your call is something along the lines of:



getter()
return this.http.get<User>('/some/api/url')
}


You'd consume that like:



ngOnInit() {
this._userService.getter().subcribe(user => this.user = user);
}


Hopefully that helps!







share|improve this answer














share|improve this answer



share|improve this answer








edited Nov 14 '18 at 15:02

























answered Nov 14 '18 at 14:55









Alexander StaroselskyAlexander Staroselsky

12.8k42040




12.8k42040













  • getter(){ return this.user; }

    – Rohit Prajapati
    Nov 14 '18 at 15:05











  • ngOnInit() { this.user = this._userService.getter(); }

    – Rohit Prajapati
    Nov 14 '18 at 15:06



















  • getter(){ return this.user; }

    – Rohit Prajapati
    Nov 14 '18 at 15:05











  • ngOnInit() { this.user = this._userService.getter(); }

    – Rohit Prajapati
    Nov 14 '18 at 15:06

















getter(){ return this.user; }

– Rohit Prajapati
Nov 14 '18 at 15:05





getter(){ return this.user; }

– Rohit Prajapati
Nov 14 '18 at 15:05













ngOnInit() { this.user = this._userService.getter(); }

– Rohit Prajapati
Nov 14 '18 at 15:06





ngOnInit() { this.user = this._userService.getter(); }

– Rohit Prajapati
Nov 14 '18 at 15:06


















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