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The following objects are available in JavaScript:
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NOTE: Each object topic indicates whether the object is part of the client (in Navigator), server (in LiveWire), or is common (built-in to JavaScript). Server objects are not included in this version of the documentation.
An anchor is a piece of text identified as the target of a hypertext link.
To define an anchor, use standard HTML syntax :
<A NAME="anchorName" anchorText </A>
NAME specifies a tag that becomes an available hypertext target within the current document.
anchorText specifies the text to display at the anchor.
You can reference the anchor objects in your code by using the anchors property of the document object. The anchors property is an array that contains an entry for each anchor in a document.
xxx to be supplied
None.
Represents a Java applet. xxx NYI.
xxx to be supplied
The applet object executes applets written in Java, not JavaScript. Java applets execute only on Netscape 2.0 and HotJava, and only on 32-bit platforms, such as Windows 95, Windows NT, and Unix. They do not execute on the 16-bit Windows platforms, such as Windows 3.1.
xxx to be supplied
A button object is a pushbutton on an HTML form.
<INPUT TYPE="button" NAME="objectName" VALUE="buttonText" [onClick="handlerText"]>NAME specifies the name of the button object as a property of the enclosing form object and can be accessed using the name property. VALUE specifies the label to display on the button face and can be accessed using the value property.
The button object is a custom button that you can use to perform an action you define.
A custom button does not necessarily load a new page into the client; it merely executes the script specified by the onClick event handler. In the following example, myfunction() is a JavaScript function.
A checkbox object is a checkbox on an HTML form. A checkbox is a toggle switch that lets the user set a value on or off.
To define a checkbox, use standard HTML syntax with the addition of the onClick event handler:
<INPUT TYPE="checkbox" NAME="objectName" [CHECKED] [onClick="handlerText"]> textToDisplay
Use the checked property to specify whether the checkbox is currently checked. Use the defaultChecked property to specify whether the checkbox is checked when the form is loaded.
JavaScript has a date object that enables you to work with dates and times. JavaScript handles dates very similar to the way Java handles dates: They have many of the same date methods, and both languages store dates internally as the number of milliseconds since January 1, 1970 00:00:00.
To create a date object:
varName = new Date(parameters)where varName is a JavaScript variable name for the date object being created; it can be a new object or a property of an existing object.
The parameters for the Date constructor can be any of the following:
today = new Date()
Xmas95= new Date("December 25, 1995 13:30:00") If you omit hours, minutes, or seconds, the value will be set to zero.
Xmas95 = new Date(95,11,25)
Xmas95 = new Date(95,11,25,9,30,0) To use date methods:
dateObj.methodName(parameters)
Exceptions: The UTC and parse methods of date are static methods that you use as follows:
Date.UTC(params) Date.parse(params)
JavaScript does not have a date data type. However, the date object and its methods enable you to work with dates and times in your applications.
The date object has a large number of methods for setting, getting, and manipulating dates.
None.
None. Built-in objects do not have event handlers.
xxx to be supplied
The document object contains information on the current document.
To define a document object, use standard HTML syntax with the addition of the onLoad and onUnLoad event handlers:
<BODY BACKGROUND="backgroundImage" BGCOLOR="#backgroundColor" FGCOLOR="#foregroundColor" LINK="#unfollowedLinkColor" ALINK="#activatedLinkColor" VLINK="#followedLinkColor" [onLoad="handlerText"] [onUnLoad="handlerText"]> </BODY>
BGCOLOR, FGCOLOR, LINK, ALINK, and VLINK are color names or color specifications in the format "#rrggbb".
The <BODY>... tag encloses an entire document, which is defined by the current URL. The entire body of the document (all other HTML elements for the document) goes within the <BODY>... tag.
You can reference the anchors, forms, and links of a document by using the anchors, forms, and links properties. These properties are arrays that contain an entry for each anchor, form, or link in a document.
The document object's title property reflects the contents of <TITLE>.... Other properties reflect the contents of the document; for example, bgColor reflects the background color, and lastModified reflects the time last modified. Some of the properties are reflections from HTML attributes; for example, the links property is a reflection of all the links in the document, and the forms property is a reflection of all the forms in the document.
xxx to be supplied
A form lets users input text and make choices from form objects such as checkboxes, radio buttons, and selection lists. You can also use a form to post data to or retrieve data from a server.
To define a form, use standard HTML syntax with the addition of the onSubmit event handler:
<FORM NAME="objectName TARGET="windowName" ACTION="serverURL" METHOD=GET | POST [onSubmit="handlerText"]> </FORM>
TARGET specifies the window that form responses go to. When you submit a form with a TARGET attribute, instead of seeing the server's responses in the same window that contained the form, you see them in a (possibly new) window. Each form in a document corresponds to a distinct object.
You can reference the form objects in your code by using the forms property of the document object. The forms property is an array that contains an entry for each form in a document.
You can reference a form's elements in your code by using the elements property. The elements property is an array that contains an entry for each element (such as a checkbox, radioButton, or text object) in a form.
xxx to be supplied
ACTION specifies the URL of the server to which form field input information is sent. Description
Properties
Methods
Event handlers
Examples
See also
