Map: Performs better in scenarios involving frequent additions and removals of key-value pairs.
object: Not optimized for frequent additions and removals of key-value pairs.
10x better!
Using Map Over Objects in JavaScript: A Performance Benchmark | by Rehmat Sayany | Medium
![](https://miro.medium.com/v2/resize:fit:1400/format:webp/1*retlSz42eT6USBidyjsQRA.png)