To create a default value for a parameter in the parameter list of a function, you code a/an sign after the parameter name followed by the default value.

Assigning a default value to parameter makes it optional and such must come last in the list. example (c#):

void GetStudents(string gender, int page=1, int size = 10){

// body
}
In the above example, gender is a required while page and size are optional.

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