What are Default Arguments?
Default Arguments are parameters in a function or method that have a default value assigned to them. These default values are used when a value for that parameter is not provided during the function call.
Here are some key points about default arguments:
- Automatic Assignment: If the function is called without providing a value for the argument, the default value is automatically assigned.
- Overriding: If a value is passed for the argument, the default value is overridden.
- Order of Arguments: Typically, default arguments are placed after non-default arguments in the function definition.
- Flexibility: Default arguments provide flexibility, allowing a function to be called with varying numbers of arguments.
- Use Cases: Default arguments are particularly useful when a function has many parameters, and only a few of them need to be specified most of the time
Default Argument in Programming
Default arguments are one of the powerful features in programming that allows developers to specify a default value for one or more parameters in a function and provides flexibility as it enables functions to be called with different numbers of arguments. When calling a function, the programmer can omit some of the arguments for parameters that have default values, and the function will use those default values instead which makes functions more versatile and user-friendly. Languages like C++, Python, etc. allow the programmer to specify default arguments that always have a value, even if one is not specified when calling the function.
Table of Content
- What are Default Arguments?
- Syntax of Default Argument
- Default Argument in C++
- Default Argument in Python
- Default Argument in Javascript
- Default Argument in Java
- Advantages of Default Argument
- Disadvantages of Default Argument