Python Functions

A single statement or set of statements for doing the specific operation and returning output
It should come with common or repetitive tasks which make a function. In place of coding the same snippet multiple times for different parameters, we can group it or summarize as function.

Types Of Functions:

•  built-in functions (print, range)
• user defined functions (Our set of code)

Example :

Pass by Reference or pass by value?

variable name —>  reference.

Whenever we send/pass a variable/argument to a function, one new reference to the object is being created.

Parameter pass in Python—> reference pass in language Java.

Default argument/Parameter pass:

Assumes a default value/Argument if no value (NULL) available for function call for that particular values/argument.

Variable length arguments:

Contains normal(argument/variable) and keyword (fixed words) variable/dynamic number of arguments/variables

Anonymous functions:

Lambda function / one line function for efficient and short functions

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