Functional programming is a paradigm that treats computation as the evaluation of mathematical functions and avoids changing state and mutable data. While Rust is primarily an imperative and systems programming language, it incorporates several functional programming principles, offering developers expressive and concise ways to write code. Let's delve into the principles of functional programming in Rust and their impact on code design.
Immutability:
1. Principle:
- In functional programming, immutability is a key concept. Once a variable is assigned a value, it cannot be changed.
2. Influence on Rust:
- Rust encourages immutability by default. Variables are immutable unless explicitly marked as mutable using the `mut` keyword.
- Immutable variables contribute to safer and more predictable code by preventing unintended side effects.
First-Class and Higher-Order Functions:
1. Principle:
- In functional programming, functions are first-class citizens, meaning they can be assigned to variables, passed as arguments, and returned as values. Higher-order functions take one or more functions as parameters or return a function.
2. Influence on Rust:
- Rust supports first-class and highe....
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