How do different JavaScript array methods perform?

What are the performance differences between map, forEach, and filter in JavaScript?

The performance can vary based on the context. Generally, forEach is faster for simple iterations, while map and filter create new arrays, which can add overhead.

Can you provide a benchmark comparison for these methods?

Sure! Benchmarks show that forEach is typically the fastest, followed by map, and then filter, especially with larger datasets.

Are there any scenarios where one method is significantly better than the others?

Yes, if you need to transform data, map is ideal. For filtering, use filter. If you just need to iterate without creating a new array, forEach is best.

What about performance in terms of memory usage?

map and filter create new arrays, which can increase memory usage. forEach uses less memory since it operates on the original array.