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Chapter 6: Problem 26

The value of a default argument must be a(n) _________.

Short Answer

Expert verified
Answer: The value type of a default argument must be an immutable object which means its state cannot be modified after it is created. This is important in programming to ensure that default arguments don't change between function calls, leading to more predictable behavior.

Step by step solution

01

Introduction to Default Arguments

In programming, a default argument is a parameter in a function definition that has a default value. This default value is used when the function is called without explicitly passing a value for that argument.
02

Identifying the Value Type

The value of a default argument must be an \textbf{immutable} type. Immutable objects are objects whose state cannot be modified after they are created. Examples of immutable objects in Python include numbers (integers, floats), strings, and tuples. By using immutable types for default arguments, you can ensure that they don't change between function calls, leading to more predictable behavior. In summary, the value of a default argument must be a(n) \textbf{immutable} object.

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Most popular questions from this chapter

What is the advantage of breaking your application's code into several small procedures?

The _________ is the part of a function definition that shows the function name, return type, and parameter list.

Special variables that hold copies of function arguments are called _________.

T F The scope of a parameter is limited to the function which uses it.

T F Overuse of global variables can lead to problems.
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