Why should programmers write clean code?

Question

BlackTom AI · Accepted Answer

Shaping the reasoning around the question, we begin by evaluating what 'clean code' aims to achieve in practice.
Option 1: 'To make it easier for humans to understand
indentation, the space between characters and lines, and variable names.' This matches the central motivation for clean code: readability and maintainability for people who read and modify it. Clear structure, sensible naming, and consistent formatting help future developers (including the original author) understand intent more quickly.
Option 2: 'To make it easier for the computer to understand' While computers parse code, compilers and interpreters already handle syntax; readability for humans is the primary driver of clean code. The machine’s understanding is not the bottleneck that clean code is designed to address.
Option 3: 'To make the program run faster' Performance is a concern in software engineering, but clean code focuses on clarity and maintainability first; optimization often comes later and may even conflict with readability if overused. Therefore this statement overstates the direct purpose of clean code.
Option 4: 'To reduce or eliminate the need to define variables' This is inaccurate: variables are fundamental constructs in programming, and clean code emphasizes meaningful names and appropriate scope, not removing the concept of variables altogether. The premise is flawed.
In summary, the strongest justification for writing clean code is its impact on human comprehension and long-term maintainability, which is precisely what option 1 articulates. The other options misattribute the primary goal or rely on misconceptions about how code quality works.

CSE-110-OD25-27 9.1 Lesson and Knowledge Check - Study Hall Video Episode: 17

Why should programmers write clean code?

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