A function is a block of code that performs an operation. Functions reduce code redundancy and makes code clean and concise.
- Built in functions
- User defined functions
There are other functions that comes with the language, these functions are called built-in functions. There are functions like sorted() that sorts a list or a tuple, there is filter() that filters values based on a certain criteria.
These are functions that the programmer creates to implement a logic.
These are the variables listed in the function definition. They act as placeholders for the values that are to be supplied to the function when it is called. Parameters are essentially the names listed in the function definition.
def greet(name:str) -> str:
return f"Asslamo Alliakum {name}"name is the function parameter.
These are the actual values that are passed to the function when it is called. These values are assigned to the corresponding parameters inside the function. Arguments are the actual data or variables passed into the function when calling it.
greet("Sarmad")value 'Sarmad' is the function argument.
A function calling itself recursively (again & again) until a particular condition breaks the function.
Lambda functions, also known as anonymous functions, are small, unnamed functions defined using the lambda keyword. They are typically used for short-term operations where a full function definition is not necessary. Lambda functions can take any number of arguments but can only have one expression.