---
title: Use 'it' as a default block parameter (Ruby 3.4+)
impact: LOW
impactDescription: Enhance code readability for concise block operations.
tags: ruby, readability, quality, syntax
---

## Use 'it' as a default block parameter (Ruby 3.4+)

Enhance code readability for concise block operations. In Ruby 3.4+, use the implicit `it` keyword instead of explicit single-use block parameters to make simple iterations cleaner.

**Incorrect:**

```ruby
users.map { |user| user.name }
```

**Correct:**

```ruby
# Ruby 3.4+
users.map { it.name }
```

**Tools:** RuboCop (`Style/ItAssignment`)