First Class Function and Higher Order Function One of the key factors in Scala that beautifully blends functional paradigm into object-oriented paradigm is that functions are objects. In functional programming, functions are first-class citizens. A first-class function is a function that can be – Assigned to variables, – Passed as an argument to the other […]
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Expression-Oriented Programming In expression-oriented programming every statement is an expression. To understand EOP, you have to understand the difference between a statement and an expression. A statement executes code, but does not return any value, for example: customer.computeDiscount() An expression returns value. Expressions are blocks of code that evaluate to a value as seen here: […]
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Apache Spark is a cluster computing platform designed to be fast and general-purpose. On the speed side, Spark extends the popular MapReduce model to efficiently support more types of computations, including interactive queries and stream processing. Speed is important in processing large datasets, as it means the difference between exploring data interactively and waiting minutes […]
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The current crisis An interesting phenomenon known as “Andy giveth, and Bill taketh away” comes from the fact that no matter how fast processors become, we software people find a way to use up that speed. There’s a reason for that. With software you’re solving more and more complex problems, and this trend will keep […]
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Scala is a general-purpose programming language designed to express common programming patterns in a concise, elegant, and type-safe way. It smoothly integrates features of object-oriented and functional programming languages, enabling programmers to be more productive. Martin Odersky (the creator of Scala) and his team started development on Scala in 2001 in the programming methods laboratory […]
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