---
title: "Discussion on \"What to Do When Your Constants Are Someone Else's Law\" | Hashnode"
description: "Discussion on \"What to Do When Your Constants Are Someone Else's Law\". A colleague once asked me why a number in my code had a comment three lines long. The number was 18.\nThe comment said which rule it came from, which section notified it, and that it could change witho"
url: "https://hashnode.com/posts/what-to-do-when-your-constants-are-someone-else-s-law/6acb97b4d2b7bc0f3bd063ec"
---

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# [What to Do When Your Constants Are Someone Else's Law](https://freecodecamp.org/news/what-to-do-when-your-constants-are-someone-else-s-law?utm_source=hashnode&utm_medium=feed)

A colleague once asked me why a number in my code had a comment three lines long. The number was 18. The comment said which rule it came from, which section notified it, and that it could change witho

Oct 11 · 9 min read · freecodecamp.org  
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## Written by

[Javeed Shaik](https://hashnode.com/@javeedshaik7)

@javeedshaik7 · Hyderabad, India

  
[View profile](https://hashnode.com/@javeedshaik7)

Developer building free health and fitness calculators.

Developer building free health and fitness calculators at healthycalculatorhub.com — 33 of them so far, covering BMI, BMR, body composition, macros and pacing. I write about the engineering behind them: static site performance, CDN caching, and the measurements that prove whether an optimisation actually worked.

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