Suite.js supports ECMAScript E5/E5.1 (E5), and partially supports ECMAScript 2015 (E6) as well as ECMAScript 2016 (E7). For detailed information on the post ECMAScript 5 features that are supported, please review this information provided by Duktape (the Javascript engine that Suite.js is built on).

Note that the Promise object is not officially supported. For a detailed technical discussion regarding this, and options for implementing it, please click here.

Suite.js extends JavaScript with its own functions and APIs, including support for cryptographic functions, I/O and file system APIs, networking support (including cURL support and a custom function that simplifies calls to NetSuite RESTlets and the SuiteTalk Web API), access to the operating system shell, text encoding functions, and more. See the Functions listed here in the documentation for a complete list of functions that Suite.js provides.