Azure Functions is a serverless computing platform offered by Microsoft as a part of Azure Cloud. All design goals are the same as other serverless/FaaS services, and Azure Functions enables us to execute our application logic without managing our own infrastructure.
Azure Functions runs a program in the form of scripts when it is triggered by events. The current version of Azure Functions supports language runtimes such as C#, F#, PHP, Node.js or Java. It is natural for Azure to support C# and F# as first-class languages for their functions because they are Microsoft-owned programming languages. In any case, the only GA-supported languages are C#, F#, and JavaScript (Node.js) anyway.
With C#, F#, or .NET languages, Azure Functions allows us to install dependencies via NuGet, the infamous package manager for .NET. In case we are writing JavaScript with Node.js...
