IS Operator

What is the IS Operator in C#?

Definition and meaning of IS Operator

The IS Operator, in C#, is an operator used to dynamically test whether or not an item is like minded with a given type.

While running with regard types involving base and derived types, it becomes vital to Cast the item of base type to derived kind after which name the approach. In case the simple cast from base to derived kind isn't always a hit, it results in throwing an Exception. The is operator is used to test for the success of solid operation without causing an exception. It is an effective operator. It now not handiest checks for the secure and a hit cast of an Object, however also fetches the forged fee on a a success forged. However, it's miles used frequently within the Code to determine the type of an object without any requirement for cast operation.

Since the is operator usually returns Boolean price (authentic or fake) after the cast operation and by no means throws an exception, it's far relatively reliable to be used in an utility code. In addition, it allows verifying the Form of an item with a given kind in a simpler way, which reduces the code size and development effort.

What Does IS Operator Mean?

The is operator is a kind trying out operator with two Parameters, which include an Expression of a reference kind. The reference kind should be checked for conversion and the vacation spot kind to which the expression must be cast. The is operator returns proper if the given expression representing the item isn't always Null and the expression succeeds in casting to the desired kind. Otherwise, it returns false.

The is operator can't be overloaded to provide some other Semantics. It may be used for checking reference, boxing and Unboxing conversions, however no longer for user-described conversions. Although the kind compatibility of the expression is evaLuated at runtime, the C# Compiler generates a warning during compilation whilst the is operator is used on sorts that are not well matched.

For Instance, the is operator can be used to check whether or not the parameter surpassed to a Method is of kind, Student or its derived type in which Student is a kind used to represent the Data related to pupil in an application.

The is operator differs from the As Operator in that the previous results in doing casts, while the latter avoids the double forged to single step and therefore better performance is achieved via the use of the as operator.

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