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| 1 | +<p>Functions and block parameters should be named consistently to communicate intent and improve maintainability. Rename your function or block |
| 2 | +parameter to follow your project’s naming convention to address this issue.</p> |
1 | 3 | <h2>Why is this an issue?</h2> |
2 | | -<p>Shared naming conventions allow teams to collaborate effectively. This rule raises an issue when a function or block parameter name does not match |
3 | | -the provided regular expression.</p> |
| 4 | +<p>A naming convention in software development is a set of guidelines for naming code elements like variables, functions, and classes.<br> Functions |
| 5 | +and block parameters hold the meaning of the written code. Their names should be meaningful and follow a consistent and easily recognizable |
| 6 | +pattern.<br> Adhering to a consistent naming convention helps to make the code more readable and understandable, which makes it easier to maintain and |
| 7 | +debug. It also ensures consistency in the code, especially when multiple developers are working on the same project.</p> |
| 8 | +<p>This rule checks that function and block parameter names match a provided regular expression.</p> |
| 9 | +<h3>What is the potential impact?</h3> |
| 10 | +<p>Inconsistent naming of functions and block parameters can lead to several issues in your code:</p> |
| 11 | +<ul> |
| 12 | + <li> <strong>Reduced Readability</strong>: Inconsistent function and block parameter names make the code harder to read and understand; |
| 13 | + consequently, it is more difficult to identify the purpose of each variable, spot errors, or comprehend the logic. </li> |
| 14 | + <li> <strong>Difficulty in Identifying Variables</strong>: The functions and block parameters that don’t adhere to a standard naming convention are |
| 15 | + challenging to identify; thus, the coding process slows down, especially when dealing with a large codebase. </li> |
| 16 | + <li> <strong>Increased Risk of Errors</strong>: Inconsistent or unclear function and block parameter names lead to misunderstandings about what the |
| 17 | + variable represents. This ambiguity leads to incorrect assumptions and, consequently, bugs in the code. </li> |
| 18 | + <li> <strong>Collaboration Difficulties</strong>: In a team setting, inconsistent naming conventions lead to confusion and miscommunication among |
| 19 | + team members. </li> |
| 20 | + <li> <strong>Difficulty in Code Maintenance</strong>: Inconsistent naming leads to an inconsistent codebase. The code is difficult to understand, |
| 21 | + and making changes feels like refactoring constantly, as you face different naming methods. Ultimately, it makes the codebase harder to maintain. |
| 22 | + </li> |
| 23 | +</ul> |
| 24 | +<p>In summary, not adhering to a naming convention for functions and block parameters can lead to confusion, errors, and inefficiencies, making the |
| 25 | +code harder to read, understand, and maintain.</p> |
| 26 | +<h2>How to fix it</h2> |
| 27 | +<p>First, familiarize yourself with the particular naming convention of the project in question. Then, update the name to match the convention, as |
| 28 | +well as all usages of the name. For many IDEs, you can use built-in renaming and refactoring features to update all usages at once.</p> |
| 29 | +<h3>Code examples</h3> |
| 30 | +<h4>Noncompliant code example</h4> |
| 31 | +<p>With the default regular expression <code>^(@{0,2}[\da-z_]+[!?=]?)|([*+-/%=!><~]+)|(\[]=?)$</code>:</p> |
| 32 | +<pre data-diff-id="1" data-diff-type="noncompliant"> |
| 33 | +def show_something(text_Param) # Noncompliant |
| 34 | + localVar = "" # Noncompliant |
| 35 | + puts text_Param + localVar |
| 36 | +end |
| 37 | +</pre> |
| 38 | +<h4>Compliant solution</h4> |
| 39 | +<pre data-diff-id="1" data-diff-type="compliant"> |
| 40 | +def show_something(text_param) |
| 41 | + local_var = "" |
| 42 | + puts text_param + local_var |
| 43 | +end |
| 44 | +</pre> |
| 45 | +<h2>Resources</h2> |
| 46 | +<h3>Documentation</h3> |
| 47 | +<ul> |
| 48 | + <li> Wikipedia - <a href="https://en.wikipedia.org/wiki/Naming_convention_(programming)">Naming Convention (programming)</a> </li> |
| 49 | +</ul> |
| 50 | +<h3>Related rules</h3> |
| 51 | +<ul> |
| 52 | + <li> {rule:ruby:S100} - Method names should comply with a naming convention </li> |
| 53 | + <li> {rule:ruby:S101} - Class names should comply with a naming convention </li> |
| 54 | +</ul> |
4 | 55 |
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