January 07, 2025

Understanding If and Unless in Elixir for Effective Control Flow

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Understanding If and Unless in Elixir for Effective Control Flow

Source: dev.to

The article explains that in Elixir, 'if' and 'unless' are used as expressions that return values, a notable distinction from many other programming languages like JavaScript or Python. It provides examples of using these structures for basic control flow, discusses their syntax, and highlights how they can be effectively applied in common scenarios such as error handling and authorization checks. The piece advises against deep nesting of 'if' statements in favor of using 'cond' and 'case' for cleaner code. Best practices for using 'if' and 'unless' are also shared, emphasizing pattern matching when applicable. Finally, the article hints at future content about 'case' and 'cond' structures.

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