Python Function with Return Value

When a function returns a value, it gives back a result to the caller using the return statement. This is useful when you want to use the result later or assign it to a variable.

जब कोई function value return करता है, तो वह return statement का उपयोग करके result वापस देता है। यह तब उपयोगी होता है जब आप उस result को आगे use करना चाहते हैं या किसी variable में store करना चाहते हैं।

10 Examples of Functions Returning Values

1. Return square of a number

   def square(n):
       return n * n
   
   print("Square:", square(4))

   Output:

   Square: 16

2. Return sum of two numbers

   def add(a, b):
       return a + b
   
   result = add(3, 7)
   print("Sum:", result)

   Output:

   Sum: 10

3. Return maximum of two

   def max_num(a, b):
       return a if a > b else b
   
   print("Max:", max_num(5, 10))

   Output:

   Max: 10

4. Return full name

   def full_name(fname, lname):
       return fname + " " + lname
   
   print(full_name("John", "Doe"))

   Output:

   John Doe

5. Return average of three numbers

   def average(a, b, c):
       return (a + b + c) / 3
   
   print("Average:", average(10, 20, 30))

   Output:

   Average: 20.0

6. Check if number is even

   def is_even(n):
       return n % 2 == 0
   
   print("Is 4 even?", is_even(4))

   Output:

   Is 4 even? True

7. Return list of squares

   def squares(n):
       return [i*i for i in range(1, n+1)]
   
   print(squares(5))

   Output:

   [1, 4, 9, 16, 25]

8. Return factorial

   def factorial(n):
       if n == 0:
           return 1
       return n * factorial(n - 1)
   
   print("Factorial:", factorial(5))

   Output:

   Factorial: 120

9. Check palindrome

   def is_palindrome(s):
       return s == s[::-1]
   
   print("Radar is palindrome:", is_palindrome("radar"))

   Output:

   Radar is palindrome: True

10. Return grade based on marks

    def get_grade(marks):
        if marks >= 90:
            return "A"
        elif marks >= 75:
            return "B"
        elif marks >= 60:
            return "C"
        else:
            return "F"
    
    print("Grade:", get_grade(82))

    Output:

    Grade: B