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Objects

Objects in the real world have properties that describe how they are unique. Your laptop, for example, has a brand (Lenovo/Apple etc.), a screen size (13/15 inch), RAM (8/16GB) etc.

How would we describe the above laptop as a JavaScript object?

var laptop = {
    brand: "Lenovo",
    screenSize: 13,
    isTouchscreen: true
};

Useful words to remember when talking about objects:

  • object literal: anything that has a set of {...} around a set of properties is an object literal
  • property or key: brand, screenSize and isTouchScreen are properties/keys of the object
  • values: "Lenovo", 13 and true are values of the object's properties