What is the default parameter type in C#?

In C# by default we pass the parameter by value also known as value parameter . But a parameter also can be passed by reference. To pass an argument with reference we need to use “ref” keyword. If any argument passed as reference then any change to the parameter in the called method is reflected in the calling method.

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What are optional parameters in C#?

A method that contains optional parameters does not force to pass arguments at calling time . It means we call method without passing the arguments. The optional parameter contains a default value in function definition. If we do not pass optional argument value at calling time, the default value is used.

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What are optional parameters in C#?

A method that contains optional parameters does not force to pass arguments at calling time . It means we call method without passing the arguments. The optional parameter contains a default value in function definition. If we do not pass optional argument value at calling time, the default value is used.

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