Skip to Main Content
JavaScript Application Cookbook
book

JavaScript Application Cookbook

by Jerry Bradenbaugh
October 1999
Intermediate to advanced content levelIntermediate to advanced
480 pages
14h 47m
English
O'Reilly Media, Inc.
Content preview from JavaScript Application Cookbook

Top-Level Properties and Functions

Top-level properties and functions are not associated with any object. Table 1.68 details the top-level properties. Table 1.69 details the top-level functions.

Table A-68. Top-Level Properties

Property

Description

Version

infinity

A numeric value representing infinity.

1.3

NaN

A value representing Not-A-Number.

1.3

undefined

The value undefined.

1.3

Table A-69. Top-Level Functions

Function

Description

Version

escape

Returns the hexadecimal encoding of an argument in the ISO Latin-1 character set; used to create strings to add to a URL.

1.0

eval

Evaluates a string of JavaScript code without reference to a particular object.

1.0

isFinite

Evaluates an argument to determine whether it is not a number.

1.3

isNaN

Returns a string representing the specified object. Overrides the Object.toString method.

1.0

Number

Converts an object to a number.

1.2

parseFloat

floating-point number.

1.0

parseInt

integer.

1.0

string

Converts an object to a string.

1.2

unescape

Returns the ASCII string for the specified hexadecimal encoding value.

1.0

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

JavaScript Application Design

JavaScript Application Design

Nicolas Bevacqua
JavaScript Cookbook

JavaScript Cookbook

Shelley Powers

Publisher Resources

ISBN: 1565925777Supplemental ContentOtherErrata Page