What are Functions?

Functions are reusable blocks of code that perform specific tasks. They help organize programs and avoid repetition.

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Key Concepts

  • Function Declaration: Use def to define a function. 

    def greet(name):
    return f"Hello, {name}!"
    python_function_syntax

  • Parameters & Arguments:

    • Parameters are variables listed in the function definition
    • Arguments are the actual values passed during calls
    python_function_parameters

  • Return Values:

    • Use return to output results
    • Can return multiple values via tuples
    python_function_return

Practical Examples

  1. Basic function: 
    def add(a, b):
    return a + b
  2. Default parameters: 
    def greet(name="Guest"):
    return f"Hello, {name}!"
  3. Lambda functions: 
    square = lambda x: x ** 2
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Expand Your Knowledge

For deeper understanding of Python basics, check out:
Python Basics Tutorial 📘

Explore more:
Python Data Types 🧾
Python OOP Concepts 🏗️