C# allows you to seed data into your dictionary when it’s constructed by using an initializer function that accepts a series of key, value pairs after its constructor that causes those elements to be automatically inserted into your Dictionary’s for you. This is a really handy way to initialize your dictionaries if you already know what you expect to be a part of them or want to use a Dictionary as a lookup table for example.

An example of what this might look like:

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// Note: replace angled brackets with correct character!
var myList = new Dictionary⟨string,string⟩() { {"key", "value"}, {"key2", "value2"} };

Doing this traditionally would look like this:

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// Note: replace angled brackets with correct character!
var myList = new Dictionary⟨string,string⟩();
myList.Add("key", "value");
myList.Add("key2", "value2");

This trick also works for Lists! Here’s how: https://youtu.be/F11BhVjmyd0

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