The Howdy Glossary

M is a programming language created by Microsoft. It was designed for analyzing data and creating data models in the Power Query tool in Excel, Power BI Desktop, and Power BI service. M supports querying and mashup operations on large datasets from different sources, including databases, web pages, CSV files, JSON documents, and REST APIs. The language allows users to clean up and transform messy or heterogeneous data into structured tables that are easier to work with in reporting or analytics applications. M uses a functional programming style with support for recursion and script expressions.