deep-copy is a small, dependency-free JavaScript library for creating deep copies of objects and arrays. It skillfully handles circular references, preventing stack overflow errors and ensuring accurate replication of complex data structures. Use it to avoid unintended mutations and maintain data integrity when working with nested objects. Ideal for scenarios where you need to preserve the original data while operating on a modified version. It's a simple yet powerful tool for any JavaScript project.
The npm package 'deep-copy' has infrequent releases. Initial release was April 2013 (v1.0.0). There were a few releases in 2015 (v1.1.0), 2016 (v1.1.1, v1.1.2, v1.2.0) and 2017 (v1.3.0, v1.4.0, v1.4.1), and the last release was January 2018 (v1.4.2). Since then, there have been no new versions published.
Deep-copy's npm package downloads show an initial surge, peaking in May 2025 at 1.08 million. Downloads remained consistently above 1 million until August 2025. September 2025 currently shows a significant decrease but the data is not complete yet.