With Azure Stream Analytics, customers can combine the power of JavaScript with the simplicity and pervasiveness of SQL.
Historically, Stream Analytics let developers express their real-time query logic by using a simple SQL-like language. To support more expressive custom code and help customers implement advanced scenarios, Stream Analytics now supports user-defined functions (UDFs) via JavaScript. With this feature, customers can write their custom code in JavaScript, and easily invoke it as part of their real-time stream processing query.