Getting [object Object] after getting http response using subscribe in Angular 2












1














ProductService.ts



   getProduct(id: number): Observable<IProduct> {

return this._http.get(this._productUrl + '/GetById/' +
id).map((response: Response) => <IProduct>response.json())
.catch(this.errorHandler);
}


ProductDetailComponent.ts



   getProduct(id: number) {
this._productService.getProduct(id).subscribe(
res => {
console.log('before component ' + res);
this.product = res;
console.log('after component ' + res);
},
error => this.errorMessage = <any>error),
console.log('execution complete');
}


When receiving result in subscribe it is coming as

execution complete,
before component [object Object],
after component [object Object]










share|improve this question




















  • 1




    console.log('before component ' + JSON.stringify(res));
    – Shota
    May 29 '17 at 7:05










  • @Shota do console.log(JSON.stringify(res,undefined,2)) to pretty print
    – Suraj Rao
    May 29 '17 at 7:06












  • Thanks, console.log('before component ', res); is also another option.
    – Shota
    May 29 '17 at 7:07












  • Also why are you printing res before and after? its value doesnt look like it changed?
    – Suraj Rao
    May 29 '17 at 7:08
















1














ProductService.ts



   getProduct(id: number): Observable<IProduct> {

return this._http.get(this._productUrl + '/GetById/' +
id).map((response: Response) => <IProduct>response.json())
.catch(this.errorHandler);
}


ProductDetailComponent.ts



   getProduct(id: number) {
this._productService.getProduct(id).subscribe(
res => {
console.log('before component ' + res);
this.product = res;
console.log('after component ' + res);
},
error => this.errorMessage = <any>error),
console.log('execution complete');
}


When receiving result in subscribe it is coming as

execution complete,
before component [object Object],
after component [object Object]










share|improve this question




















  • 1




    console.log('before component ' + JSON.stringify(res));
    – Shota
    May 29 '17 at 7:05










  • @Shota do console.log(JSON.stringify(res,undefined,2)) to pretty print
    – Suraj Rao
    May 29 '17 at 7:06












  • Thanks, console.log('before component ', res); is also another option.
    – Shota
    May 29 '17 at 7:07












  • Also why are you printing res before and after? its value doesnt look like it changed?
    – Suraj Rao
    May 29 '17 at 7:08














1












1








1







ProductService.ts



   getProduct(id: number): Observable<IProduct> {

return this._http.get(this._productUrl + '/GetById/' +
id).map((response: Response) => <IProduct>response.json())
.catch(this.errorHandler);
}


ProductDetailComponent.ts



   getProduct(id: number) {
this._productService.getProduct(id).subscribe(
res => {
console.log('before component ' + res);
this.product = res;
console.log('after component ' + res);
},
error => this.errorMessage = <any>error),
console.log('execution complete');
}


When receiving result in subscribe it is coming as

execution complete,
before component [object Object],
after component [object Object]










share|improve this question















ProductService.ts



   getProduct(id: number): Observable<IProduct> {

return this._http.get(this._productUrl + '/GetById/' +
id).map((response: Response) => <IProduct>response.json())
.catch(this.errorHandler);
}


ProductDetailComponent.ts



   getProduct(id: number) {
this._productService.getProduct(id).subscribe(
res => {
console.log('before component ' + res);
this.product = res;
console.log('after component ' + res);
},
error => this.errorMessage = <any>error),
console.log('execution complete');
}


When receiving result in subscribe it is coming as

execution complete,
before component [object Object],
after component [object Object]







angular angularjs-directive angular2-routing angular-services






share|improve this question















share|improve this question













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edited May 29 '17 at 7:30









Suraj Rao

22.6k75469




22.6k75469










asked May 29 '17 at 7:03









Lovepreet Singh

41




41








  • 1




    console.log('before component ' + JSON.stringify(res));
    – Shota
    May 29 '17 at 7:05










  • @Shota do console.log(JSON.stringify(res,undefined,2)) to pretty print
    – Suraj Rao
    May 29 '17 at 7:06












  • Thanks, console.log('before component ', res); is also another option.
    – Shota
    May 29 '17 at 7:07












  • Also why are you printing res before and after? its value doesnt look like it changed?
    – Suraj Rao
    May 29 '17 at 7:08














  • 1




    console.log('before component ' + JSON.stringify(res));
    – Shota
    May 29 '17 at 7:05










  • @Shota do console.log(JSON.stringify(res,undefined,2)) to pretty print
    – Suraj Rao
    May 29 '17 at 7:06












  • Thanks, console.log('before component ', res); is also another option.
    – Shota
    May 29 '17 at 7:07












  • Also why are you printing res before and after? its value doesnt look like it changed?
    – Suraj Rao
    May 29 '17 at 7:08








1




1




console.log('before component ' + JSON.stringify(res));
– Shota
May 29 '17 at 7:05




console.log('before component ' + JSON.stringify(res));
– Shota
May 29 '17 at 7:05












@Shota do console.log(JSON.stringify(res,undefined,2)) to pretty print
– Suraj Rao
May 29 '17 at 7:06






@Shota do console.log(JSON.stringify(res,undefined,2)) to pretty print
– Suraj Rao
May 29 '17 at 7:06














Thanks, console.log('before component ', res); is also another option.
– Shota
May 29 '17 at 7:07






Thanks, console.log('before component ', res); is also another option.
– Shota
May 29 '17 at 7:07














Also why are you printing res before and after? its value doesnt look like it changed?
– Suraj Rao
May 29 '17 at 7:08




Also why are you printing res before and after? its value doesnt look like it changed?
– Suraj Rao
May 29 '17 at 7:08












3 Answers
3






active

oldest

votes


















3














You are using string concatenation (using the + sign). This way, Javascript will first convert the Object to a string ([object Object]). If you don't want that, you could try it like this: console.log('before component', res).



Note the comma, not a +. This passes the object to console.log as a separate parameter, allowing your browser or CLI to do the rendering. For instance, this way (in the browser) you can expand or collapse the object.






share|improve this answer





























    2














    You need to do JSON.stringify



    console.log('before component ' + JSON.stringify(res));  





    share|improve this answer





























      1














      You could also do the following:



      console.log('before component',JSON.stringify(res,undefined,2))


      to pretty print [Object object] as json object.






      share|improve this answer





















      • But still i am not able to get desired result in this.product object. before component { "productId": 1, "productName": "Garden Cart", "productCode": "GDN-0023", "releaseDate": "March 18, 2016", "price": 32.99, "description": "15 gallon capacity rolling garden cart", "starRating": 4.2, "imageUrl": "app/Images/a.png" }product-detail.component.ts:38 after component [object Object] console.log('after component ' + this.product);
        – Lovepreet Singh
        May 29 '17 at 7:13












      • what are you getting and what are you expecting? print using JSON.stringify after also
        – Suraj Rao
        May 29 '17 at 7:15












      • i need to bind json result to product object
        – Lovepreet Singh
        May 29 '17 at 7:16












      • As I said use console.log('after component',JSON.stringify(this.product,undefined,2))
        – Suraj Rao
        May 29 '17 at 7:17










      • But when doing this this.product = JSON.stringify(this.product,undefined,2); i am getting this error "string is not assignable to type IProduct"
        – Lovepreet Singh
        May 29 '17 at 7:29











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      3 Answers
      3






      active

      oldest

      votes








      3 Answers
      3






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      3














      You are using string concatenation (using the + sign). This way, Javascript will first convert the Object to a string ([object Object]). If you don't want that, you could try it like this: console.log('before component', res).



      Note the comma, not a +. This passes the object to console.log as a separate parameter, allowing your browser or CLI to do the rendering. For instance, this way (in the browser) you can expand or collapse the object.






      share|improve this answer


























        3














        You are using string concatenation (using the + sign). This way, Javascript will first convert the Object to a string ([object Object]). If you don't want that, you could try it like this: console.log('before component', res).



        Note the comma, not a +. This passes the object to console.log as a separate parameter, allowing your browser or CLI to do the rendering. For instance, this way (in the browser) you can expand or collapse the object.






        share|improve this answer
























          3












          3








          3






          You are using string concatenation (using the + sign). This way, Javascript will first convert the Object to a string ([object Object]). If you don't want that, you could try it like this: console.log('before component', res).



          Note the comma, not a +. This passes the object to console.log as a separate parameter, allowing your browser or CLI to do the rendering. For instance, this way (in the browser) you can expand or collapse the object.






          share|improve this answer












          You are using string concatenation (using the + sign). This way, Javascript will first convert the Object to a string ([object Object]). If you don't want that, you could try it like this: console.log('before component', res).



          Note the comma, not a +. This passes the object to console.log as a separate parameter, allowing your browser or CLI to do the rendering. For instance, this way (in the browser) you can expand or collapse the object.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered May 29 '17 at 7:06









          Jeff Huijsmans

          8021023




          8021023

























              2














              You need to do JSON.stringify



              console.log('before component ' + JSON.stringify(res));  





              share|improve this answer


























                2














                You need to do JSON.stringify



                console.log('before component ' + JSON.stringify(res));  





                share|improve this answer
























                  2












                  2








                  2






                  You need to do JSON.stringify



                  console.log('before component ' + JSON.stringify(res));  





                  share|improve this answer












                  You need to do JSON.stringify



                  console.log('before component ' + JSON.stringify(res));  






                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered May 29 '17 at 7:05









                  Sajeetharan

                  116k27162221




                  116k27162221























                      1














                      You could also do the following:



                      console.log('before component',JSON.stringify(res,undefined,2))


                      to pretty print [Object object] as json object.






                      share|improve this answer





















                      • But still i am not able to get desired result in this.product object. before component { "productId": 1, "productName": "Garden Cart", "productCode": "GDN-0023", "releaseDate": "March 18, 2016", "price": 32.99, "description": "15 gallon capacity rolling garden cart", "starRating": 4.2, "imageUrl": "app/Images/a.png" }product-detail.component.ts:38 after component [object Object] console.log('after component ' + this.product);
                        – Lovepreet Singh
                        May 29 '17 at 7:13












                      • what are you getting and what are you expecting? print using JSON.stringify after also
                        – Suraj Rao
                        May 29 '17 at 7:15












                      • i need to bind json result to product object
                        – Lovepreet Singh
                        May 29 '17 at 7:16












                      • As I said use console.log('after component',JSON.stringify(this.product,undefined,2))
                        – Suraj Rao
                        May 29 '17 at 7:17










                      • But when doing this this.product = JSON.stringify(this.product,undefined,2); i am getting this error "string is not assignable to type IProduct"
                        – Lovepreet Singh
                        May 29 '17 at 7:29
















                      1














                      You could also do the following:



                      console.log('before component',JSON.stringify(res,undefined,2))


                      to pretty print [Object object] as json object.






                      share|improve this answer





















                      • But still i am not able to get desired result in this.product object. before component { "productId": 1, "productName": "Garden Cart", "productCode": "GDN-0023", "releaseDate": "March 18, 2016", "price": 32.99, "description": "15 gallon capacity rolling garden cart", "starRating": 4.2, "imageUrl": "app/Images/a.png" }product-detail.component.ts:38 after component [object Object] console.log('after component ' + this.product);
                        – Lovepreet Singh
                        May 29 '17 at 7:13












                      • what are you getting and what are you expecting? print using JSON.stringify after also
                        – Suraj Rao
                        May 29 '17 at 7:15












                      • i need to bind json result to product object
                        – Lovepreet Singh
                        May 29 '17 at 7:16












                      • As I said use console.log('after component',JSON.stringify(this.product,undefined,2))
                        – Suraj Rao
                        May 29 '17 at 7:17










                      • But when doing this this.product = JSON.stringify(this.product,undefined,2); i am getting this error "string is not assignable to type IProduct"
                        – Lovepreet Singh
                        May 29 '17 at 7:29














                      1












                      1








                      1






                      You could also do the following:



                      console.log('before component',JSON.stringify(res,undefined,2))


                      to pretty print [Object object] as json object.






                      share|improve this answer












                      You could also do the following:



                      console.log('before component',JSON.stringify(res,undefined,2))


                      to pretty print [Object object] as json object.







                      share|improve this answer












                      share|improve this answer



                      share|improve this answer










                      answered May 29 '17 at 7:07









                      Suraj Rao

                      22.6k75469




                      22.6k75469












                      • But still i am not able to get desired result in this.product object. before component { "productId": 1, "productName": "Garden Cart", "productCode": "GDN-0023", "releaseDate": "March 18, 2016", "price": 32.99, "description": "15 gallon capacity rolling garden cart", "starRating": 4.2, "imageUrl": "app/Images/a.png" }product-detail.component.ts:38 after component [object Object] console.log('after component ' + this.product);
                        – Lovepreet Singh
                        May 29 '17 at 7:13












                      • what are you getting and what are you expecting? print using JSON.stringify after also
                        – Suraj Rao
                        May 29 '17 at 7:15












                      • i need to bind json result to product object
                        – Lovepreet Singh
                        May 29 '17 at 7:16












                      • As I said use console.log('after component',JSON.stringify(this.product,undefined,2))
                        – Suraj Rao
                        May 29 '17 at 7:17










                      • But when doing this this.product = JSON.stringify(this.product,undefined,2); i am getting this error "string is not assignable to type IProduct"
                        – Lovepreet Singh
                        May 29 '17 at 7:29


















                      • But still i am not able to get desired result in this.product object. before component { "productId": 1, "productName": "Garden Cart", "productCode": "GDN-0023", "releaseDate": "March 18, 2016", "price": 32.99, "description": "15 gallon capacity rolling garden cart", "starRating": 4.2, "imageUrl": "app/Images/a.png" }product-detail.component.ts:38 after component [object Object] console.log('after component ' + this.product);
                        – Lovepreet Singh
                        May 29 '17 at 7:13












                      • what are you getting and what are you expecting? print using JSON.stringify after also
                        – Suraj Rao
                        May 29 '17 at 7:15












                      • i need to bind json result to product object
                        – Lovepreet Singh
                        May 29 '17 at 7:16












                      • As I said use console.log('after component',JSON.stringify(this.product,undefined,2))
                        – Suraj Rao
                        May 29 '17 at 7:17










                      • But when doing this this.product = JSON.stringify(this.product,undefined,2); i am getting this error "string is not assignable to type IProduct"
                        – Lovepreet Singh
                        May 29 '17 at 7:29
















                      But still i am not able to get desired result in this.product object. before component { "productId": 1, "productName": "Garden Cart", "productCode": "GDN-0023", "releaseDate": "March 18, 2016", "price": 32.99, "description": "15 gallon capacity rolling garden cart", "starRating": 4.2, "imageUrl": "app/Images/a.png" }product-detail.component.ts:38 after component [object Object] console.log('after component ' + this.product);
                      – Lovepreet Singh
                      May 29 '17 at 7:13






                      But still i am not able to get desired result in this.product object. before component { "productId": 1, "productName": "Garden Cart", "productCode": "GDN-0023", "releaseDate": "March 18, 2016", "price": 32.99, "description": "15 gallon capacity rolling garden cart", "starRating": 4.2, "imageUrl": "app/Images/a.png" }product-detail.component.ts:38 after component [object Object] console.log('after component ' + this.product);
                      – Lovepreet Singh
                      May 29 '17 at 7:13














                      what are you getting and what are you expecting? print using JSON.stringify after also
                      – Suraj Rao
                      May 29 '17 at 7:15






                      what are you getting and what are you expecting? print using JSON.stringify after also
                      – Suraj Rao
                      May 29 '17 at 7:15














                      i need to bind json result to product object
                      – Lovepreet Singh
                      May 29 '17 at 7:16






                      i need to bind json result to product object
                      – Lovepreet Singh
                      May 29 '17 at 7:16














                      As I said use console.log('after component',JSON.stringify(this.product,undefined,2))
                      – Suraj Rao
                      May 29 '17 at 7:17




                      As I said use console.log('after component',JSON.stringify(this.product,undefined,2))
                      – Suraj Rao
                      May 29 '17 at 7:17












                      But when doing this this.product = JSON.stringify(this.product,undefined,2); i am getting this error "string is not assignable to type IProduct"
                      – Lovepreet Singh
                      May 29 '17 at 7:29




                      But when doing this this.product = JSON.stringify(this.product,undefined,2); i am getting this error "string is not assignable to type IProduct"
                      – Lovepreet Singh
                      May 29 '17 at 7:29


















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