Functions
Elixir Anonymous Functions
Anonymous Functions
Elixir anonymous functions use fn with capture operator.
Introduction to Anonymous Functions in Elixir
Anonymous functions in Elixir are a powerful feature that allows you to define functions without naming them. These functions are often used for short-lived operations that don't require a formal function definition. In Elixir, anonymous functions are created using the fn keyword and are often utilized in conjunction with the capture operator & for concise syntax.
Syntax of Elixir Anonymous Functions
To define an anonymous function, you use the fn keyword, followed by the arguments, the -> operator, and the function body enclosed in parentheses. Here's the basic structure:
Using the Capture Operator
The capture operator & provides a shorthand way to define anonymous functions. It is particularly useful for creating simple functions that involve calling an existing named function. The operator captures the function and its arguments, which are represented numerically starting from &1.
Practical Examples
Let's explore some practical examples of using anonymous functions in Elixir. These examples demonstrate how you can use them in different contexts.
Conclusion
Elixir's anonymous functions provide flexibility and power, allowing developers to write concise and expressive code. They are an essential part of functional programming in Elixir, offering a way to work with functions as first-class citizens. By mastering anonymous functions and the capture operator, you'll be well-equipped to handle more complex functional programming tasks.
Functions
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- Anonymous Functions
- Pattern Matching
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- Function Arity
- Default Arguments
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