Typescript error adding sublayers to MapImageLayer

LefterisKoumis

I declare a mapimagelayer 

 

 const MPl = new MapImageLayer({
----
----

 

Then I created an array of sublayers that need to be visilbe.

 I added the sublayers index in an array

 

thearr.push({
            id: 1,
            visible: true},
           {
            id: 3,
            visible: true}
          );

 

Then, I used:

MPl.sublayers = thearr;

 but I got an  error

When I used this script without using typescript i have no errors and it runs fine.

Noah Sager

I'm not 100% positive, but I think that if you don't declare the sublayers in the MapImageLayer constructor, you need to use one of the Collection methods to define/add/modify the sublayers.

Collection methods:

https://developers.arcgis.com/javascript/latest/api-reference/esri-core-Collection.html#methods-summary

sublayers property:

https://developers.arcgis.com/javascript/latest/api-reference/esri-layers-MapImageLayer.html#sublayers