Styjun

How to "know" if I have a passion?

Would combining A* with a flocking algorithm be too performance-heavy?

Defense against attacks using dictionaries

Is there such a thing as too inconvenient?

Do we need to assume underlying returns are normal in BSM model, given Central Limit Theorem?

Something in the TV

Was this pillow joke on Friends intentional or a mistake?

How to dismiss intrusive questions from a colleague with whom I don't work?

Why didn’t Doctor Strange stay in the original winning timeline?

Potential new partner angry about first collaboration - how to answer email to close up this encounter in a graceful manner

(Why) May a Beit Din refuse to bury a body in order to coerce a man into giving a divorce?

Why we don't have vaccination against all diseases which are caused by microbes?

Turn TDE off when restoring SQL databases

What's /System/Volumes/Data?

Are illustrations in novels frowned upon?

Why my earth simulation is slower than the reality?

Sleeping solo in a double sleeping bag

Why is Boris Johnson visiting only Paris & Berlin if every member of the EU needs to agree on a withdrawal deal?

!I!n!s!e!r!t! !n!b!e!t!w!e!e!n!

How much code would a codegolf golf if a codegolf could golf code?

Does Git delete empty folders?

Why is 日本 read as "nihon" but not "nitsuhon"?

What is "Wayfinder's Guide to Eberron"?

Why doesn't mathematics collapse even though humans quite often make mistakes in their proofs?

How can I delete all firebase data on button click in Ionic3?

How to store and view images on firebase?Nested list query in Firebase using Ionic3Firebase + Ionic3 Error: disallowed_useragentionic3 get all data from firebaserendering ionic3 data in view htmlIonic3, angular & firebase get from dbIonic3 , Firebase | Line skippingHow can I summarize all cart data? using Ionic 3 and FirebaseHow to pass console log data into object in Ionic3 and firebase

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;

1

I want to delete all the data from firebase on button click on my Ionic 3 app.

here is my html code
and it shows some error that says 'cannot read property key'

 <ion-list *ngFor="let item of orderList$ | async">
 <ion-item>
 <ion-label text-wrap>
 <h2 style="font-weight: bold">item?.name</h2> 
 <p style="color: black">Quantity : item?.qty</p> 
 <p style="color: black">Price : item?.price</p>
 <p class="pr" style="font-weight: bold; color: black">Total :</p><p class="pr" style="color: red"> item?.total</p>

 </ion-label>
 </ion-item>
 <ion-input type="hidden" [(ngModel)]="placed.orders" [value]="namees">namees</ion-input>
 </ion-list>

 <p style="color: black;">Total Vat(12%) : vatTotal</p>
 <p style="color: black">Price Subtotal : priceTotal</p>
 <label style="font-weight: bold; font-size: 18px;">Order Total :</label>
 <ion-input type="number" [(ngModel)]="placed.totalp" [value]="vatTotal + priceTotal" required="true" disabled="true" style="font-size: 18px;">vatTotal + priceTotal</ion-input>
 <button ion-button block clear (click)="addPlaced(placed)">Submit Order</button>
 <button ion-button block clear color="default" (click)="removeItem(item)">Delete Order</button>

this is my ts code where removeItem is initiated

 removeItem(item: Item)
 this.dr.removeItem(item).then(()=>
 this.toast.show(`$item.name removed!`);
 this.navCtrl.setRoot(HomePage);
 );
 

removeItem service

private cartlistref = this.db.list<Item>('cart');

 removeItem(item: Item)
 return this.cartlistref.remove(item.key);
 

my additional question is it possible to delete the created db list 'cart' on button click?

angular ionic-framework firebase-realtime-database ionic3 angularfire2

share|improve this question

asked Mar 27 at 15:25

Ryan Christian CabilinRyan Christian Cabilin

1333 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  where you have declare item that are you passing in on click button removeItem(item)
  
  – Bhagwat Tupe
  Mar 27 at 15:53
  
  

  
  
  
  

add a comment | 

1

I want to delete all the data from firebase on button click on my Ionic 3 app.

here is my html code
and it shows some error that says 'cannot read property key'

 <ion-list *ngFor="let item of orderList$ | async">
 <ion-item>
 <ion-label text-wrap>
 <h2 style="font-weight: bold">item?.name</h2> 
 <p style="color: black">Quantity : item?.qty</p> 
 <p style="color: black">Price : item?.price</p>
 <p class="pr" style="font-weight: bold; color: black">Total :</p><p class="pr" style="color: red"> item?.total</p>

 </ion-label>
 </ion-item>
 <ion-input type="hidden" [(ngModel)]="placed.orders" [value]="namees">namees</ion-input>
 </ion-list>

 <p style="color: black;">Total Vat(12%) : vatTotal</p>
 <p style="color: black">Price Subtotal : priceTotal</p>
 <label style="font-weight: bold; font-size: 18px;">Order Total :</label>
 <ion-input type="number" [(ngModel)]="placed.totalp" [value]="vatTotal + priceTotal" required="true" disabled="true" style="font-size: 18px;">vatTotal + priceTotal</ion-input>
 <button ion-button block clear (click)="addPlaced(placed)">Submit Order</button>
 <button ion-button block clear color="default" (click)="removeItem(item)">Delete Order</button>

this is my ts code where removeItem is initiated

 removeItem(item: Item)
 this.dr.removeItem(item).then(()=>
 this.toast.show(`$item.name removed!`);
 this.navCtrl.setRoot(HomePage);
 );
 

removeItem service

private cartlistref = this.db.list<Item>('cart');

 removeItem(item: Item)
 return this.cartlistref.remove(item.key);
 

my additional question is it possible to delete the created db list 'cart' on button click?

angular ionic-framework firebase-realtime-database ionic3 angularfire2

share|improve this question

asked Mar 27 at 15:25

Ryan Christian CabilinRyan Christian Cabilin

1333 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  where you have declare item that are you passing in on click button removeItem(item)
  
  – Bhagwat Tupe
  Mar 27 at 15:53
  
  

  
  
  
  

add a comment | 

I want to delete all the data from firebase on button click on my Ionic 3 app.

here is my html code
and it shows some error that says 'cannot read property key'

 <ion-list *ngFor="let item of orderList$ | async">
 <ion-item>
 <ion-label text-wrap>
 <h2 style="font-weight: bold">item?.name</h2> 
 <p style="color: black">Quantity : item?.qty</p> 
 <p style="color: black">Price : item?.price</p>
 <p class="pr" style="font-weight: bold; color: black">Total :</p><p class="pr" style="color: red"> item?.total</p>

 </ion-label>
 </ion-item>
 <ion-input type="hidden" [(ngModel)]="placed.orders" [value]="namees">namees</ion-input>
 </ion-list>

 <p style="color: black;">Total Vat(12%) : vatTotal</p>
 <p style="color: black">Price Subtotal : priceTotal</p>
 <label style="font-weight: bold; font-size: 18px;">Order Total :</label>
 <ion-input type="number" [(ngModel)]="placed.totalp" [value]="vatTotal + priceTotal" required="true" disabled="true" style="font-size: 18px;">vatTotal + priceTotal</ion-input>
 <button ion-button block clear (click)="addPlaced(placed)">Submit Order</button>
 <button ion-button block clear color="default" (click)="removeItem(item)">Delete Order</button>

this is my ts code where removeItem is initiated

 removeItem(item: Item)
 this.dr.removeItem(item).then(()=>
 this.toast.show(`$item.name removed!`);
 this.navCtrl.setRoot(HomePage);
 );
 

removeItem service

private cartlistref = this.db.list<Item>('cart');

 removeItem(item: Item)
 return this.cartlistref.remove(item.key);
 

my additional question is it possible to delete the created db list 'cart' on button click?

angular ionic-framework firebase-realtime-database ionic3 angularfire2

share|improve this question

asked Mar 27 at 15:25

Ryan Christian CabilinRyan Christian Cabilin

1333 bronze badges

 <ion-list *ngFor="let item of orderList$ | async">
 <ion-item>
 <ion-label text-wrap>
 <h2 style="font-weight: bold">item?.name</h2> 
 <p style="color: black">Quantity : item?.qty</p> 
 <p style="color: black">Price : item?.price</p>
 <p class="pr" style="font-weight: bold; color: black">Total :</p><p class="pr" style="color: red"> item?.total</p>

 </ion-label>
 </ion-item>
 <ion-input type="hidden" [(ngModel)]="placed.orders" [value]="namees">namees</ion-input>
 </ion-list>

 <p style="color: black;">Total Vat(12%) : vatTotal</p>
 <p style="color: black">Price Subtotal : priceTotal</p>
 <label style="font-weight: bold; font-size: 18px;">Order Total :</label>
 <ion-input type="number" [(ngModel)]="placed.totalp" [value]="vatTotal + priceTotal" required="true" disabled="true" style="font-size: 18px;">vatTotal + priceTotal</ion-input>
 <button ion-button block clear (click)="addPlaced(placed)">Submit Order</button>
 <button ion-button block clear color="default" (click)="removeItem(item)">Delete Order</button>

 removeItem(item: Item)
 this.dr.removeItem(item).then(()=>
 this.toast.show(`$item.name removed!`);
 this.navCtrl.setRoot(HomePage);
 );
 

private cartlistref = this.db.list<Item>('cart');

 removeItem(item: Item)
 return this.cartlistref.remove(item.key);
 

angular ionic-framework firebase-realtime-database ionic3 angularfire2

angular ionic-framework firebase-realtime-database ionic3 angularfire2

share|improve this question

asked Mar 27 at 15:25

Ryan Christian CabilinRyan Christian Cabilin

1333 bronze badges

share|improve this question

asked Mar 27 at 15:25

Ryan Christian CabilinRyan Christian Cabilin

1333 bronze badges

asked Mar 27 at 15:25

Ryan Christian CabilinRyan Christian Cabilin

1333 bronze badges

asked Mar 27 at 15:25

Ryan Christian CabilinRyan Christian Cabilin

1333 bronze badges