Hardcoding numbers (unnamed, literal constants) in code without explanation is a bad programming practice. What are these hardcoded numbers known as

Magic numbers.

Explanation:

In Computer programming, hardcoding can be defined as a software development process which typically involves directly embedding or infusing data into the source code of a computer software application or program rather than generating the data at runtime or sourcing (obtaining) it from an external source.

Hence, hardcoding numbers (unnamed, literal constants) in code without explanation is a bad programming practice. These hardcoded numbers are known as magic numbers.

A magic number refers to a hard-coded value embedded into the source code of a software program without explanation and as such are very difficult to update.

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