An object in JavaScript is something similar to a real-life object. For example, an object can be your computer. It has various properties like color, screen size, and many methods (functionalities) like internet browsing. Computers can vary though, for example, they can have a different operating system, like macOS or Linux. Just like other data types, objects can contain various values. The values are written in a key-value pair saved inside curly braces. These key-value pairs are called properties of objects. Functions which are also properties are called methods.

From Medium.