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Inline Initializing C# Lists - Quick Tip

 ·   ·  ☕ 1 min read

C# includes a method for initializing Lists that means you do not need to repeatedly Add("foo") throughout your code. This allows you to specify a set of items immediately after the Lists constructor that causes the items to be sequentially added to the list after its created for you. This works for most collection types including Arrays and Lists.

Here’s an example of what constructing a list like this might look like.

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// Note: replace angled brackets with correct character!
var myList = new Liststring() { "this", "is", "a", "test" };

Doing this traditionally would look like this:

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// Note: replace angled brackets with correct character!
var myList = new Liststring();
myList.Add("this");
myList.Add("is");
myList.Add("a");
myList.Add("test");

This trick also works with Dictionary’s! Here’s how: https://youtu.be/lFsgmxzw7IU

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Sam Wronski
WRITTEN BY
Sam Wronski
Maker of things, currently helping build cloud things @ Google. World of Zero is a personal project disconnected from my professional work. Lets make something awesome together!