Non-Primitive data type in JavaScript is Object. It holds the address or reference of the key value pair that can be single or multiple key values. These are also called as derived datatypes.

Non-Primitive datatypes
//Non-primitive data type 
// object

const obj = {
  name: "Rajesh",
  class: "10",
  section: "A"
}

console.log("Printing Object");
console.log(obj);
// Adding a New element to the object
console.log("");
console.log("Adding a new element to the object");
obj["subject"] = "Hindi, Math";
console.log(obj);

// Accessing the Object in JavaScript
console.log("Accessing the Object in JavaScript");
//1.
console.log(obj["class"])
//2. 
console.log(obj.name)