oop_v_func.py

#Using OOP

class Employee:
    def __init__(self, name, salary):
        self.name = name 
        self.salary = salary 

    def change_salary(self, change, increment=True):
        if increment:
            self.salary += change
        else:
            self.salary -= change

employee_1 = Employee("Anmol", 10**8)
employee_2 = Employee("Jon Snow", 10**7)
employee_3 = Employee("Tyrion", 10**6)
employee_4 = Employee("Joffrey", 10**0)

employee_1.change_salary(1000)
employee_2.change_salary(1000)
employee_3.change_salary(1000)
employee_4.change_salary(0)

#Functional programming :(

Employees = {'Anmol': 10**8, 'Jon Snow': 10**7, 'Tyrion': 10**6, 'Joffrey': 10**0}

def change_salary(Employees: dict, name: str, change: int, increment: bool):
    if name in Employees:
        if increment:
            Employees[name] += change
        else:
            Employees[name] += change
    return Employees

# I don't know if this demostrates completely, but, with OOP 
# It creates a serpate oobject for each employee we make
# This is just a small example, but a real life app, may require a lot of 
# features instead of just name and salary, they might require to change the address 
# as well! It would be become a night mare if you use FUNCTIONAL PROGRAMMING for this.