In this chapter, you learned about the Geometry Service and the various capabilities it supports. In short, it helps you achieve sophisticated results for frequently required geometric operations without having to create geoprocessing services.
You also learned about the newer and vastly better-performing Geometry Engine, which gives you access to the same operations, without your application having to make round trips to the server.
So far, we have been digging deeper and deeper into the capabilities of the ArcGIS API for JavaScript and you should now have a pretty good understanding of the sort of things you can achieve with it. In the next chapter, we will take a step back and look at ArcGIS Online and how you can use the ArcGIS API for JavaScript to consume maps that you have created on the ArcGIS Online platform.
