Question

What is unary operator give a bit long answer

Answer 1

A unary operator, in C#, is an operator that takes a single operand in an expression or a statement. The unary operators in C# are +, -,!, ~, ++, -- and the cast operator.

The signature of the declaration of a unary operator includes the operator token and the type of parameter; it does not require the return type and the name of the parameter.

All the C# unary operators have predefined implementation that will be used by default in an expression. These unary operators can be overloaded in user-defined types with custom implementation by defining static member functions using the "operator" keyword. 

Answer 2

The 'unary operators' operate on a 'single operand'.

Explanation:

• The increment (++), decrement (++), unary minus (-), Addressof operator(&), sizeof(), and logical not (!) are examples of 'unary operators'.
• The 'unary operators' operate on the 'object' for which they were 'called and normally', this 'operator' appears on 'the left side of the object', as '!obj, -obj', and '++obj' but sometimes they can be used as postfix as well like 'obj++ or obj--'.
• 'Unary operators' are 'unique operators' that operate upon 'one operand only'.

To know more

The unary operator type of returns .......... if the operand value is Null

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How is 'unary +' operator different from '+' operator? How is 'unary -' operator different from ' - ' operator in python.​

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