Modifying Javascript Objects With Const And Freeze

Javascript const

Using const we can still modify the contents of a Javascript objects but the reference to this object will be immutable.

const product = {name: "Sugar", weight: "1 kg"};
product.name = "Some New Name";
console.log(product);

    
    

    
    





{
  name: "Some New Name",
  weight: "1 kg"
}

    
    

    
    




  
  
  Javascript freeze

Using freeze is preferred in cases where we do not want to modify the contents of an object.

const product = {name: "Sugar", weight: "1 kg"};
Object.freeze(product);
product.name = "Some New Name";
console.log(product);...