Appendix DJavaScript Quick Reference

This appendix is a quick reference for the JavaScript language. It includes the built-in objects and the objects in the basic object hierarchy, JavaScript statements, and built-in functions.

Built-in Objects

The following objects are built in to JavaScript. Some can be used to create objects of your own; others can only be used as they are. Each is detailed in the following sections.


You can create a new array object to define an array—a numbered list of variables. (Unlike other variables, arrays must be declared.) Use the new keyword to define an array, as in this example:

students = new Array(30)

Items in the array are indexed beginning with 0. Refer to items in the array with ...

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