Array of objects manipulation question

Jehex · 2026-05-02T02:48:40.763+00:00

Hi! Quick question about array manipulation.I’m building an array of objects { id, commentsCount }, initially empty, that gets updated from a child component event. Each time a user comments, the event returns the post ID.The goal is to keep a temporary local array of posts and their comment counts to update the UI without refreshing or calling the API.How should I handle adding/updating objects in this array with these two cases : If an object with the same id exists → increment commentsCountIf not → add { id, commentsCount: 1 } to the arrayThanks you

Jehex
13 days ago
Hi! Quick question about array manipulation.

I’m building an array of objects { id, commentsCount }, initially empty, that gets updated from a child component event. Each time a user comments, the event returns the post ID.

The goal is to keep a temporary local array of posts and their comment counts to update the UI without refreshing or calling the API.

How should I handle adding/updating objects in this array with these two cases :

If an object with the same id exists → increment commentsCount
If not → add { id, commentsCount: 1 } to the array

Thanks you
Armand
13 days ago
You could put a switch in the commented event. If id exists go down that path (find object with that id and set new value), otherwise down the Else path and append new object.
Jehex
12 days ago
Hello there, is it possible to show me the formula to modify one of the attribute of an object from an array where for example the id is found ( not sure Im clear lol )
Armand
12 days ago
If I understand your question correctly, then you want to see how to add a new commentsCount in these two scenarios:
1. It is the first comment and no commentsCount exists yet -> append commentsCount to existing array.
2. It is not the first comment and a commentsCount already exists -> update existing commentsCount object with existing number + 1.
@Armand
If I understand your question correctly, then you want to see how to add a new commentsCount in these two scenarios:
1. It is the first comment and no commentsCount exists yet -> append commentsCount to existing array.
2. It is not the first comment and a commentsCount already exists -> update existing commentsCount object with existing number + 1.
Jehex
12 days ago
Hi there, thanks for your anwser, Im gonna check it now
Jehex
12 days ago
I think I have an issue with my condition for check if an object with the same id has been received already exist ( object who contain the id / comment count )
Armand
12 days ago
Try to put some data in your variable and also confirm what your event data looks like. Then setting it up and testing it will be much easier

Array of objects manipulation question

Jehex

Armand

Jehex

Armand

Jehex

Jehex

Armand