A lambda expression has the following BNF form: (parameters) => expression-or-statement-block : Lambda « LINQ « C# / C Sharp

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A lambda expression has the following BNF form: (parameters) => expression-or-statement-block
 

using System;

class Test {
    static void Main() {
        Func<int, int> square = x => x * x;
        Console.WriteLine(square(3));     // 9
    }
}

 
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4.return a lambda function
5.A local variable instantiated within a lambda expression is unique per invocation of the delegate instance.
6.square is assigned the lambda expression x = > x * x:
7.A lambda expression can reference the local variables and parameters of the method in which it's defined.
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