class super() code example

Example 1: python super

# The super() function lets you run a parent class function inside the child class.
class Parent(object):
    def __init__(self, age):
        self.age = age
    
    def func(self):
        print(f"Hi, my age is {self.age}!")

class Child(Parent):
    def __init__(self, age):
        # Here is where I can use the super to run the parent class __init__ function to set the childs' name
        super().__init__(age)

dad = Parent(36)
kid = Child(8)

dad.func()
kid.func() # The kid inherits it from the dad, so I could run it like that too

Example 2: python super

class Square(Rectangle):
    def __init__(self, length):
        super().__init__(length, length)

Example 3: super in javascirpt

class Rectangle {
  constructor(height, width) {
    this.name = 'Rectangle';
    this.height = height;
    this.width = width;
  }
  sayName() {
    console.log('Hi, I am a ', this.name + '.');
  }
  get area() {
    return this.height * this.width;
  }
  set area(value) {
    this._area = value;
  }
}

class Square extends Rectangle {
  constructor(length) {
    this.height; // ReferenceError, super needs to be called first!

    // Here, it calls the parent class's constructor with lengths
    // provided for the Rectangle's width and height
    super(length, length);

    // Note: In derived classes, super() must be called before you
    // can use 'this'. Leaving this out will cause a reference error.
    this.name = 'Square';
  }
}