C# ref Keyword: Functions & Features Explained

1 year ago
Sophia Anderson
1 minute

In C#, the ref keyword is used to pass parameters to a method by reference rather than by value. By using the ref keyword, you can modify the value of the parameter passed to the method within the method itself, allowing you to change the value of the variable passed when calling the method.

Characteristics of the ref include:

  1. You can modify the values of the parameters passed to a method within the method itself.
  2. Request to use the ref keyword to declare parameters in the method’s parameter list.
  3. When calling a method, you need to pass parameters using the ref keyword.
  4. The ‘ref’ parameter always points to the same memory location both inside and outside the method, so any changes will affect the original data.

It is important to note that when using the ref keyword to pass parameters, you need to ensure that the method will actually modify the parameter’s value internally; otherwise, you can just use pass by value.

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