What are dynamic type variables in C#?

Dynamic type variables in C# are variables declared with the dynamic keyword that can hold values of any type and have their type checked at runtime rather than compile-time[1][2][3][4][5]. Some key points about dynamic types in C#:

• They are declared using the dynamic keyword, e.g. dynamic x = 5;[1][2][4]
• The type of a dynamic variable can change at runtime based on the value assigned to it[1][2][4]
• Dynamic variables bypass compile-time type checking, so you can assign any value to them regardless of type[1][2][3][4]
• Type errors with dynamic variables are caught at runtime, not compile-time[2][3]
• Dynamic variables behave like object variables in most cases[5]
• You can get the actual runtime type of a dynamic variable using the GetType() method[5]

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