Copying Javascript objects

There are three types of syntax using which we can copy objects in javascript.

const area = {
  let length = 5,
  let breadth = 5,
  let type = 'square',
};

//Shallow copy

1. Using spread operator:

let sqr= {
  ...area
};

//Shallow copy

1. Using object method:

let sqr = Object.assign({}, area);

//Deep copy

1. Using JSON method:

let sqr = JSON.parse(JSON.stringify(area));