What is an Object in JavaScript ?

Objects, in JavaScript, are the most important data type and form the building blocks for modern JavaScript. These objects are quite different from JavaScript’s primitive data types (Number, String, Boolean, null, undefined, and symbol) in the sense that these primitive data types all store a single value each (depending on their types).

Syntax:

new Object(value)
Object(value)
let object_name = {
    key_name : value,
    ...
}

Example: Here, the variable person is assigned an object representing information about a person. It has three key-value pairs: name: "John", age: 30, and city: "New York". The object properties are accessed using dot notation (person.name), and the value "John" is then logged to the console.

Javascript

let person = {
    name: "John",
    age: 30,
    city: "New York"
};
console.log(person.name); // Output: John

Output

John