JavaScript code might contain syntax or logical errors that can be difficult to diagnose. These errors do not have indications and need to be debugged in a runtime environment. In Creo Parametric 7.0.2.0 and later you can debug Creo.JS code by using Chrome DevTools(CDT). The Creo.JS toolkit uses a Chrome V8 JavaScript engine that runs within the Creo process and supports the standard CDT protocol. This process enables you to use the remote debugger through DevTools provided by the Chrome Web browser.