How can a TypeScript entry be shortened?

Question

typescript

return this.layerService.getLayerItems(layer.groupNode.id).map((item: LayerItemGenericDecription) => {
       let {title, description }  = this.layersSemanticService.getTitleDescription(item, layer.groupNode.id);
       item.title = title;
       item.description = description;
      return item;
    });

Is it possible to do something like this:

return {irem.title, item.description} =  this.layersSemanticService.getTitleDescription(item, layer.groupNode.id);

Answer 1

it's better that way

return this.layerService.getLayerItems(layer.groupNode.id)
  .map((item: LayerItemGenericDecription) => {
    const { title, description }  = this.layersSemanticService.getTitleDescription(item, layer.groupNode.id);
    return { ...item, ...{ title, description }};
  });

And if getTitleDescription does not produce anything else, then title and description are not needed either.
It is better not to mutate the original item, you never know what it will affect.