Can I create an item id when adding it to a collection?

» javascript » Can I create an item id when adding it to a collection?

By : user3044929

Date : December 01 2020, 04:50 PM

seems to work fine If you are using the Realtime Database of Firebase as suggested by your question tag, you can do it as explained here

code :

  firebase.database().ref('users/' + userId).set({
    username: name,
    email: email,
    profile_picture : imageUrl
  });

db.collection("users").doc(userId).set({
    username: name,
    email: email,
    profile_picture : imageUrl
  });

Share :

Declaring and creating an object then adding to collection VS Adding object to collection using new keyword to create ob

By : Mevlüt Canvar

Date : March 29 2020, 07:55 AM

will be helpful for those in need 1) Which snippet A or B is better and why?
They're really identical. The compiled code will be nearly identical, since a temporary object is pushed onto the stack, then used in the method call.

Adding an item to a Collection within a Collection

By : user3105911

Date : March 29 2020, 07:55 AM

may help you . This is my object structure,

code :

Group.OffersList.Where(x => x.GroupId == "1")
                 .ToList()
                 .ForEach(x => x.Add(Product));

EF: Adding new item in a collection and notifying all other collections that new item is added

By : Joachim

Date : March 29 2020, 07:55 AM

Hope that helps Instead of binding to different instances of IEnumerable myCollection, the recommended approach is to bind directly to Context.EntitySet. EntitySet implements INotifyCollectionChanged and INotifyPropertyChanged interfaces. When you bind to the same instance of EntitySet, each page may be notified of changes by responding to the EntitySet.CollectionChanged event. For example:

code :

// Page 1
_myCollection = Context.EntitySet<MyItem>();
_myCollection.CollectionChanged += MyItemsChanged;

...

// Page 2
_myCollection = Context.EntitySet<MyItem>();
_myCollection.CollectionChanged += MyItemsChanged;

Adding new Item to collection on 'add' triggers only once

By : user2141734

Date : March 29 2020, 07:55 AM

will help you Why don't you try to use the click event as the other one? Inside the collectionView use events again.

code :

events: {

             "click #send_email_button" : "AnyNameThatYouWant"
         },

AnyNameThatYouWant: function() {
            //Do all the things
         },

Backbone.js - View in Collection adding item to another (sibling) Collection

By : Arunbalaji AmirthaRa

Date : March 29 2020, 07:55 AM

I hope this helps . Another alternative than listening directly to events from your collection, is the use of an eventBus. Derick Bailey from Los techies wrote a nice article where he introduces the idea of communication between different components (in his case views) via an eventBus.
If you are firm with coffeescript - and possibly even if you're not - you should also check this nice extension from Adam Thurlow.