Objects are containers for Properties and Methods. Properties are named Values. Methods are Functions stored as Properties. Properties can be primitive values, functions, or even other objects.

Mar 7, 2025 · An object in JavaScript is a collection of key-value pairs, where keys are strings (properties) and values can be any data type. Objects can be created using object literals, constructors, or classes.

Apr 3, 2025 · In JavaScript, an object is a standalone entity, with properties and type. Compare it with a cup, for example. A cup is an object, with properties. A cup has a color, a design, weight, a material it is made of, etc. The same way, JavaScript objects can have properties, which define their characteristics.

JavaScript Object Methods can be grouped into: The most common way to protect an object from being changed is by using the const keyword. With const you can not re-assign the object, but you can still change the value of a property, delete a property or create a new property.

Jan 16, 2024 · Here is the syntax to declare an object with the name object_name and having the members inside it having key-value pairs and all the members are enclosed inside {}. key_1: value_1, key_2: value_2, ... We can also define it in a …

JavaScript object is a variable that can store multiple data in key-value pairs. Here's a quick example of the JavaScript object. Read the rest of the tutorial for more. firstName: "Jack", rollNo: 32 . // Output: { firstName: 'Jack', rollNo: 32 }

Jun 19, 2022 · In JavaScript, objects penetrate almost every aspect of the language. So we must understand them first before going in-depth anywhere else. An object can be created with figure brackets {…} with an optional list of properties .

Jan 7, 2025 · In JavaScript, an object is an unordered collection of key-value pairs, where each pair is called a property. The key (property name) is typically a string, and the value associated with the key can be anything — such as a string, a number, an array, or even a function.

An object is a collection of key-value pairs. Use the dot notation (.) or array-like notation ([]) to access the property of an object. Use the delete operator to remove a property from an object. Use the in operator to check if a property exists in an object.

JavaScript objects are containers for named values, called properties and methods. The Object type represents one of JavaScript's data types. It is used to store various keyed collections and more complex entities. Objects can be created using the Object () constructor or the object initializer / literal syntax. An example JavaScript object: