JavaScript Core Reference - Beginning JavaScript - page 666

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function introduced description

JavaScript 1.0 Parses a string and returns it as an integer. An

optional second parameter specifies the base
of the number to be converted.

parseInt()

JavaScript 1.2 Converts an object to a string.

String()

JavaScript 1.0 Returns the ASCII string for the specified

hexadecimal encoding value.

unescape()

Javascript core oBJects

This section describes the objects available in the JavaScript core language and their methods and
properties.

array
The Array object represents an array of variables. It was introduced in JavaScript 1.1. An Array
object can be created with the Array constructor:

var objArray = new Array(10); // an array of 11 elements
var objArray = new Array("1", "2", "4"); // an array of 3 elements

Arrays can also be created using array literal syntax:

var objArray = [];

Literal syntax is the preferred method of creating an array.

Properties

property introduced description

JavaScript 1.1 Used to reference the constructor function for the object.

constructor

JavaScript 1.1 Returns the number of elements in the array.

length

JavaScript 1.1 Returns the prototype for the object, which can be used to

extend the object's interface.

prototype

Note Square brackets ( [] ) surrounding a parameter means that parameter is
optional.