Microsoft open sources a low-code programming language for all

by Joseph K. Clark

Microsoft has announced a new open-source programming language designed for business users and professional developers. Power Fx is intended to be a low-code language that anyone can use. According to the company, it is based on Microsoft Excel and uses already familiar formulas, opening the language up to a broad range of users and skillsets.    

“With Power Fx, we can amplify the impact of developers by many multiples over the same time horizon. We’re dramatically expanding who can build sophisticated solutions by offering citizen developers a friendly and approachable way to express logic. By delivering Power Fx with the tools a professional expects, including the ability to directly edit apps in text editors like Visual Studio Code and use source control, we’re making it possible for developers to go faster and find common ground with millions of makers,” Ryan Cunningham, director PM of Power Apps at Microsoft, wrote in a post


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Since the language is open source, the language will be available for sincere contribution and innovation. Additionally, it is built for the low-code world and will extend across Microsoft’s Power Platform, Dataverse, Power Automate, and Power Virtual Agents. 

“The truth is, point-and-click tools are great for quickly assembling experiences and workflows, but many real-world solutions need a layer of logic that goes beyond what is practical to drag and drop,” Cunningham explained. 

The motivation behind the language was to develop something familiar to Excel users, content-centric instead of program-centric, and recompile in real-time. 

Since Power Fx is based on Microsoft Excel, it provides similar syntax, functions, and behaviors. For instance, formulas are declarative and recalculate instantly. This helps ensure everyone works from the same source of truth and frees developers from manually updating variables and data tables, according to Cunningham.

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