Javascript objects

JavaScript Objects

Javascript has the option to have obejct oriented concepts.

we learnt 2 ways to add a method to that classless obejct namely -

let b = {
  method1: func(){
      //function body goes here
  },
  method2(){
      //method body goes here
  }
}

We learnt that if we assign an obejct to another directly it is a reference so if we change property in one of the object, both of them changes.
We can mitigate this issue by shallow copy / spread operator.
The issue with shallow copy is nested objects are still passed as reference.

so we can use the deep copy method - stringify / parse methode

let a = {p1: v1, p2: v2}
let b = JSON.stringify(JSON.parse(a)) //this crates a deep copy of a

You can use the classic class denotion with a constructor to create a class and from there an object
In js objects, if you define a method with arrow function, it does not point to the parent obejct when we use the keyword this
the global this in a HTML page with attached JS is the window object.