Converting a cast method into a function in Typescript

With some experimenting on WebRTC, I found that the ondatachannel callback takes a function, but I'm wondering if it's possible to use a method of a Typescript class instead. Can someone please assist me with this?

export class MainComponent implements onViewInit {
    peerConnection = null;

    onViewInit() {
         this.peerConnection = new RTCPeerConnection();
          this.peerConnection.ondatachannel = this.receiveChannelCallbackt;
    }
    onMessage(event):void {
      console.log("test);
    }
    receiveChannelCallbackt(event)  {
     event.channel.onmessage= onMessage;
}

Answer №1

To implement this solution, follow the recommendation of @jcalz in the initial comment and use the bind() method.

this.peerConnection.ondatachannel = this.receiveChannelCallbackt.bind(this);

By doing this, when the peerConnection.ondatachannel is triggered, your class method will be executed with the correct thisArg.

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