Proven Refactoring Techniques for Cleaner Code

Refactoring is a crucial skill for developers who want to maintain clean, efficient, and scalable code. Milan Jovanović shares valuable insights on refactoring techniques to improve code quality. Here’s a breakdown of his approach along with practical commands and steps to implement these techniques.

Proven Refactoring Techniques
Free Clean Architecture Template: Download Here

You Should Know:

1. Make It Work First

Before optimizing, ensure the code functions correctly. Use debugging tools to verify logic.

Linux Command:

gdb ./your_program  Debug using GDB

Windows Command:

Get-Process | Where-Object { $_.CPU -gt 50 }  Monitor high CPU processes

2. Improve Readability (Make It Pretty)

• Use consistent indentation.
• Apply meaningful variable names.

Python Example:

 Bad 
x = 10 
y = 20 
 Good 
width = 10 
height = 20 

3. Add Tests for Safety

Automate testing to catch regressions early.

Linux (Bash Testing):

!/bin/bash 
test "$(echo 1+1 | bc)" -eq 2 || echo "Math test failed" 

Windows (PowerShell Test):

if ((1 + 1) -ne 2) { Write-Output "Test failed" } 

4. Avoid Over-Engineering

• Follow the KISS principle (Keep It Simple, Stupid).
• Use modular functions instead of monolithic code.

Git Command to Review Changes:

git diff --color-words  Check modifications clearly

5. Refactor Regularly

• Use IDE tools (VS Code, JetBrains) for automated refactoring.
• Apply SOLID principles.

Linux (Find & Replace in Files):

find . -type f -name ".py" -exec sed -i 's/old_var/new_var/g' {} + 

What Undercode Say:

Refactoring is not optional—it’s essential for maintainable software. Use version control (git), automated testing (pytest, JUnit), and static analyzers (SonarQube, ESLint). Avoid premature optimization. Instead, focus on:

• Linux Performance Checks:

  top -o %CPU  Monitor CPU usage
  

• Windows Network Debugging:

  Test-NetConnection -ComputerName google.com -Port 80 
  

Expected Output: Clean, efficient, and scalable code with fewer bugs.

(End of article)

References:

Reported By: Milan Jovanovic – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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