How do arrays and objects compare in terms of performance?

How do arrays and objects compare in terms of performance?

Arrays are generally faster for indexed access, while objects are better for key-value pairs. It depends on the use case.

Can you explain why arrays are faster for indexed access?

Arrays are stored in contiguous memory locations, allowing for quick access via index. Objects, however, require key lookups.

What about memory usage? Are arrays more efficient?

Arrays typically use less memory than objects because they have a fixed size and type, while objects can have dynamic properties.

Are there scenarios where I should prefer objects over arrays?

Yes, if you need to store data with named properties or require dynamic keys, objects are more suitable.