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Border

BORDER properties of markup

Complete indicates whether the browser has fully loaded a Boolean value for the image

Height HEIGHT characteristics

Hspace HSPACE characteristics

Lowsrc LOWSRC characteristics

Src SRC characteristics

VsPace VSPACE characteristics

Width WIDTH characteristics

Event handler

Onload image loading

Onerror loading error

Onabort cancel

B.16 images array

It is a property of the document object, a list of all the images in the document.

Attribute

The number of images in the length document

B.17 link

It is a property of the document object and a tag within the document.

Attribute

Hash A string that begins with a hash number (#) and is used to specify an anchor point within the URL

Host includes the hostname portion of the URL with colons and port numbers

Hostname has the same attributes as host, except for colons and port numbers

Href complete URL

The directory path section of pathname URL

Port URL: Port section

Protocol URL type (http:, ftp:, gopher:, and so on)

The part of a URL that starts with a question mark and specifies search information.

Target the window used to display the contents of the referenced document when the user clicks a link (TARGET property)

Event handler

Onclick Click

Onmouseover mouse over the object

B.18 links array

It is a property of the document object, a list of all links within the document.

Attribute

Number of links in an length document

B.19 location object

It is a property of the document object, the full URL of the document, so don't confuse it with the _ window.location property, which can be used to load a new document, and the _ window.location property itself is not an object, and _ window.location can be modified by script, but not _ document.location.

Attribute

Hash A string that begins with a hash number (#) and is used to specify an anchor point within the URL

Host includes the hostname portion of the URL with colons and port numbers

Hostname is the same as the host property, except for colons and port numbers

Href complete URL

The directory path section of pathname URL

Port URL: Port section

Type of protocol URL (http:, ftp:, gopher:, and so on)

Search with question mark (?) Part of the initial URL that specifies search information

The window that displays the contents of the referenced document when the target user clicks the link (TARGET property)

B.20 math object

This object is not a property of other objects, but a built-in object that contains many mathematical constants and functions.

Attribute

E Euler constant, the base of the natural logarithm (about 2.718)

The natural logarithm of LN2 2 (approximately 0.693)

The natural logarithm of LN10 10 (approximately 2.302)

The logarithm of e with base 2 in LOG2E (about 1.442)

The logarithm of e of LOG10E with base 10 (approximately equal to .434)

The value of PI ∏ (approximately 3.14159)

The square root of SQRT1_2 0.5 (that is, l divided by the square root of 2, approximately equal to .707)

The square root of SQRT2 2 (approximately 1.414)

Method

Abs () returns the absolute value of a number (that is, the distance between the number and o, for example, the absolute values of 2 and-2 are 2)

Acos () returns the inverse cosine of a number (in radians)

Asin () returns the arcsine of a number (in radians)

Atan () returns the arc tangent of a number (in radians)

Ceil () returns the smallest integer equal to, or greater than, a number (ceil (- 22.22) returns-22), returns 23 (22), returns 22)

Cos () returns the cosine of a number in radians

Exp () returns en

Floor () is opposite to ceil (floor (- 22.22) returns-23; floor (22.22) returns 22; floor (22) returns 22)

10g () returns the natural logarithm of a number (based on e)

Max () returns a larger value between two numbers

Min () returns the smaller value of two numbers.

Pow () returns the n power of m (where m is the base and n is the exponent)

Random () returns a pseudorandom number between 0 and 1 (this method is only in Netscape

Valid in the UNIX version of Navigator)

Round () returns an integer after a certain number is rounded

Sin () returns the sine of a number (in radians)

Sqrt () returns the square root of a number

Tan () returns the tangent of a number

B.2l navigator object

This object is not a property of another object, but a built-in object that contains information about the browser that loads the document.

Attribute

The code name of the appCodeName browser (for example, Mozilla)

The name of the appName browser

Version number of the appVersion browser

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