What is an Immutable Dictionary in C#?

Can you explain what an immutable dictionary is in C#?

An immutable dictionary in C# is a collection that cannot be modified after it is created. This means you cannot add, remove, or change the key-value pairs.

What are the benefits of using an immutable dictionary?

The benefits include thread safety, easier reasoning about code, and preventing accidental changes to the data.

How do I create an immutable dictionary in C#?

You can create an immutable dictionary using the ImmutableDictionary class from the System.Collections.Immutable namespace.

Can you show me a code example?

Sure! Here's a simple example:

using System.Collections.Immutable;

var immutableDict = ImmutableDictionary.Create<int, string>()
    .Add(1, "One")
    .Add(2, "Two");