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HC5-5. Haskell Chapter 5 Practical Tasks: Improving‐and‐combining‐functions |
This topic explores techniques for improving and combining functions in functional programming. It covers higher-order functions, which take other functions as arguments or return them, including filter for selecting elements and any for checking conditions. Lambda functions provide concise, anonymous function definitions, while precedence and associativity dictate how expressions are evaluated. Curried functions transform multi-argument functions into chains of single-argument functions, and partial application allows fixing some arguments in advance. The $ operator simplifies function application by reducing parentheses, while the . operator enables function composition, combining multiple functions into one. Point-free style further enhances readability by eliminating explicit arguments where possible. Together, these concepts lead to more expressive, reusable, and modular code. |
