What's the best way to load a series of chat messages in typescript?

I am currently working on developing a web chat application using ionic, and I have encountered an issue with loading and displaying messages. Below is the code snippet that I am using to load messages from the database:

<ion-item *ngFor="let mesage of messages | slice: 0:slice" class="msg">
      <ion-row>
        <ion-text color="tertiary"><b>{{ mesage.user }}: &nbsp;</b></ion-text>
        <ion-text color="secondary"> {{ mesage.text }}</ion-text>
      </ion-row>
    </ion-item>

Currently, my code loads messages starting from the first one in the database up to message[slice]. However, I am facing difficulty in only displaying the last 10 messages and then dynamically loading new ones as they arrive.

javascriptangulartypescriptionic-frameworkchat

Answer №1

In the event that someone encounters a similar issue, I managed to solve it by loading messages from a designated index. The size of the index varies depending on the number of messages available. Here's how I implemented it: 

*ngFor="let message of messages | slice: ind:messages.length"
(To ensure the first loaded message is displayed correctly, when adding a new message, be sure to decrement the index using ind--)

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