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Chapter 12. JavaScript in Web Browsers > The Web Browser Environment

12.1. The Web Browser Environment

To understand client-side JavaScript, you must understand the conceptual framework of the programming environment provided by a web browser. The following sections introduce three important features of that programming environment:

  • The Window object that serves as the global object and global execution context for client-side JavaScript code

  • The client-side object hierarchy and the document object model that forms a part of it

  • The event-driven programming model


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