remove some Layers from the map in WAB (DE)

SaraEL_MALKI

Hi guys,

I am new to WAB(DE), I want to make a widget that removes some layers from the map,

I tried the code below but id does not work,

var layerInfos = LayerInfos.getInstanceSync();
array.forEach(layerInfos.getLayerInfoArray(), function(layerInfo) {

this.map.removeLayer(layerInfo.newSubLayers[0].layerObject);
this.map.removeLayer(layerInfo.newSubLayers[1].layerObject);
this.map.removeLayer(layerInfo.newSubLayers[2].layerObject);

}, this);

What is wrong with it ?

Robert Scheitlin, GISP‌

ArcGIS Enterprise‌