Difference between ImmutableArray<T> and ImmutableList<T>

Question

What is difference between ImmutableArray<T> and ImmutableList<T>, and where would it be best to use each?

Answer 1

I think you are asking where to use each of them. Please welcome ImmutableArray will help. To summarize, use immutable array when:

• Updating the data is rare or the number of elements is quite small (<16)
• You need to be able to iterate over the data in performance critical sections
• You have many instances of immutable collections and you can’t afford keeping the data in trees

Use immutable list when:

• Updating the data is common or the number of elements isn't expected to be small
• Updating the collection is more performance critical than iterating the contents