Haskell is a functional programming language that thrives on concise and expressive code. One of the lesser-known yet elegant features of Haskell is sections, which offer a shorthand way to define functions. If you’ve ever wondered what’s going on when you see partial application involving operators like (+1) or (2*), you’re in the realm of…

Haskell is renowned for its elegant syntax, type safety, and powerful abstractions. At the core of Haskell’s computation lies its non-strict evaluation model, which enables lazy evaluation. To fully grasp how Haskell evaluates expressions, it’s essential to understand n-reduction, a key concept in Haskell’s computational framework. This article explores what n-reduction means, why it matters,…

Monads and monadic functions are cornerstone concepts in Haskell, playing a vital role in handling computations with added structure, such as side effects, optional values, or sequences. While monads provide the framework for managing these contexts, monadic functions define the operations within them. Understanding how these two concepts work together is crucial for writing expressive…

In Haskell, fixity determines how operators are parsed concerning their precedence and associativity. This plays a critical role in how expressions involving multiple operators are interpreted, especially when parentheses are omitted. Understanding fixity allows you to define custom operators with clear and predictable behavior, improving the readability and correctness of your Haskell programs. This article…

Haskell is a powerful, lazy functional programming language that emphasizes purity and immutability. While its lazy evaluation model provides numerous benefits, it also introduces potential pitfalls, such as space leaks. Space leaks can lead to excessive memory consumption, degrading the performance of Haskell programs. This article explores what space leaks are, why they occur, and…

For newcomers to Haskell, the return function can be confusing, especially for those transitioning from imperative programming languages where return is used to exit a function and provide a result. In Haskell, return means something entirely different. It’s a fundamental concept in monadic programming, and understanding its role is key to mastering Haskell. This article…

Reverse Polish Notation (RPN), also known as postfix notation, is a mathematical notation in which operators follow their operands. In relation to Haskell, RPN is not a core language feature but is relevant when implementing or understanding stack-based computations or evaluating expressions using a stack. It is often encountered in the context of parsing, expression…