Humans get bored beyond line 10.

TL;DR: Refactor and extract functions longer than 5 lines.

Problems

• Low Cohesion
• High coupling
• Difficult to read
• Low Reuse

Solutions

1. Refactor

2. Create small objects dealing with some tasks. Unit test them.

3. Compose methods

Examples

• Libraries

Sample Code

Wrong

Right

Detection

All linters can measure and warn when methods are larger than a predefined threshold.

Relations

-https://maximilianocontieri.com/code-smell-102-arrow-code

Also Known as

• Long Method

More info

• Refactoring Guru

Tags

• Complexity

Conclusion

Extract long method into smaller pieces. Break complex algorithms in parts. You can also unit test these parts.

Credits

Photo by Hari Panicker on Unsplash

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Programs are meant to be read by humans and only incidentally for computers to execute.

Donald Knuth

https://maximilianocontieri.com/software-engineering-great-quotes

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This article is part of the CodeSmell Series.