csharp / intermediate
Snippet
Accessing Objects via Custom Indexers
Indexers allow instances of a class or struct to be indexed just like arrays. This is useful for classes that represent a collection of data or provide access to internal buffers.
snippet.cs
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public class SimpleCache{private string[] _data = new string[10];public string this[int index]{get => _data[index];set => _data[index] = value;}}
Breakdown
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this[int index]
The 'this' keyword is used to define an indexer. The parameter inside the brackets determines the index type.
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get => / set =>
Like properties, indexers use accessors to retrieve or assign values to the indexed data.