How do map, filter, and forEach compare in performance?

Can you explain the performance differences between map, filter, and forEach in JavaScript?

Sure! The performance of map, filter, and forEach can vary based on the use case. Generally, map and filter create new arrays, while forEach does not. This means map and filter can be slower due to the additional memory allocation.

So, when should I use each of them?

Use map when you want to transform data, filter when you need to select specific elements, and forEach for executing a function on each element without needing a return value.

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

Yes, if you need to transform an array and return a new one, use map. If you're filtering out elements, use filter. For simple iterations where you don't need a new array, forEach is the best choice.

What about performance in large datasets?

In large datasets, forEach might be faster since it doesn't create a new array. However, the difference can be negligible depending on the operation being performed.