Functions have been the basic building blocks of software since the first lines of code were written and the need for code organization and reuse became a necessity. Azure Functions expand on these concepts by allowing developers to create "serverless", event-driven functions that run in the cloud and can be shared across a wide variety of services and systems, uniformly managed, and easily scaled based on demand. In addition, Azure Functions can be written in a variety of languages, including C#, JavaScript, Python, Bash, and PowerShell, and they're perfect for building apps and nanoservices that employ a compute-on-demand model.

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