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chapter 16
pageNumber 99
description window is a global object that represents the browser window or tab in which the current web page is loaded. The window object acts as the global object for client-side JavaScript, meaning that variables and functions declared without the var, let, or const keywords become properties and methods of the window object.

Window

The window object represents the browser window and is supported by the browsers. Global variables, objects, and functions are also part of the window object.

Global variables are properties and functions are methods of the window object.

Let's take an example of the screen properties. It is used to determine the size of the browser window and is measured in pixels.

  • window.innerHeight - the inner height of the browser window
  • window.innerWidth - the inner width of the browser window

Note: window.document is same as document.location as the document object model(DOM) is part of window object.

Few examples of the window methods

  • window.open() - open a new window
  • window.close() - close the current window
  • window.moveTo() - move the current window
  • window.resizeTo() - resize the current window