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collection expression

Square-bracket syntax for building a collection: [1, 2, 3].

A collection expression (C# 12) creates a collection of the target type from elements and spreads (..other) in square brackets.

Examples

  • int[] both = [..first, ..second]; builds one array from two, and List<string> names = []; starts an empty list.

See also

array List<T>
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