The significant performance difference is usually only noticeable at very large objects/arrays. A good read on the subject of performance and native method rep

The significant performance difference is usually only noticeable at very large objects/arrays. A good read on the subject of performance and native method replacements: https://github.com/codemix/fast.js/tree/master#how https://github.com/codemix/fast.js/tree/master#how