Defensive copying in JavaScript

Defensive copying is a programming technique used to protect data from being modified unexpectedly by creating a copy of the original data. It is a crucial step in ensuring data integrity and security, especially in situations where the original data is shared among multiple functions or is used as an input to a function that could modify it. This technique helps maintain the accuracy and consistency of data, and reduces the likelihood of bugs or errors. Despite its benefits, defensive copying can also come with its own challenges, such as performance overhead and increased memory usage. In this article, we will explore the concept of defensive copying, its benefits and pitfalls, and when and how to implement it in your code. This article will provide you with a comprehensive understanding of defensive copying and its role in modern software development.

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Definition
Advantages
Disadvantages
Implementation

Definition