| Tag | Description | JavaScript examples | Status |
| anchor | A target for a hyperlink. | | JavaScript 1.2 |
| applet | Java applet included in a web page. | | JavaScript 1.1 |
| area | Defines an area of an image as an image map. | | JavaScript 1.0 |
| arguments | An array of parameters passed to a function. | | JavaScript 1.1 |
| array | An array is an ordered list of elements. | | JavaScript 1.1 |
| boolean |
The Boolean object is an object wrapper
for a boolean value.
| | JavaScript 1.1 |
| button | A graphical button that can be "pressed" by a user. | | JavaScript 1.0 |
| checkbox | A box that the user can check. For groups of checkboxes, users may select multiple checkboxes. | | JavaScript 1.0 |
| date | Lets you work with dates and times. | | JavaScript 1.0 |
| document | Represents an HTML or XML document. | | JavaScript 1.0 |
| documenttraversal | Allows you to create iterators and tree-walkers to traverse the nodes of a Document. | | JavaScript 1.0 |
| domexception | Interface defining error codes for DOM-related processing exceptions. | | JavaScript 1.0 |
| element | Represents an element in an HTML or XML document. | | JavaScript 1.0 |
| enumerator | Enumerator is a proprietary Microsoft object that iterates over items in a group. | | JavaScript 1.0 |
| error | Represents a runtime error. | | JavaScript 1.5 |
| evalerror | The EvalError is thrown when the eval method is used incorrectly. | | JavaScript 1.5 |
| event | Provides information about an event. | | JavaScript 1.0 |
| fileupload | Element on an HTML form for a user to upload a file. | | JavaScript 1.0 |
| form | An HTML form that collects user input. | | JavaScript 1.0 |
| frame | A frame within a frameset in a web browser window. | | JavaScript 1.0 |
| function |
Every function in JavaScript is actually a Function object.
| | JavaScript 1.0 |
| global | The Global object is the parent of all globally avaliable properties and methods. | | JavaScript 1.0 |
| hidden | An input element on a form that is hidden from a user. Similar to a Text element, except that it is not visible. | | JavaScript 1.0 |
| history | Array of all of the URLs that a user has visited with the current browser window. | | JavaScript 1.0 |
| htmlelement | HTMLElement is the parent class of all HTML elements. | | JavaScript 1.0 |
| image | An image in an HTML document. | | JavaScript 1.1 |
| input | Input element on an HTML form. | | JavaScript 1.0 |
| javaclass | JavaScript representation of a Java class. | | JavaScript 1.1 |
| javaobject | JavaScript representation of a Java object. | | JavaScript 1.1 |
| javapackage | JavaScript representation of a Java package. | | JavaScript 1.1 |
| javaarray | A Java array that is wrapped in JavaScript and can be accessed by JavaScript code. | | JavaScript 1.1 |
| jsobject | Java representation of a JavaScript object. | | JavaScript 1.0 |
| layer | Layer in an HTML document. | | JavaScript 1.0 |
| link | A hypertext link. | | JavaScript 1.0 |
| location | URL of the window. | | JavaScript 1.0 |
| math |
A built-in object that has properties and methods for
mathematical constants and functions. For example, the
Math object's PI property has the value of pi.
| | JavaScript 1.0 |
| mimetype | Representation of a MIME (Multipart Internet Mail Extension) data type. | | JavaScript 1.0 |
| navigator | Contains information about the current web browser. | | JavaScript 1.0 |
| node | Node in an HTML document tree. | | JavaScript 1.0 |
| number |
Lets you work with numeric values. The
Number object is an object wrapper for
primitive numeric values.
| | JavaScript 1.1 |
| object | Object is the primitive JavaScript object type. All JavaScript objects are descended from Object. That is, all JavaScript objects have the methods defined for Object. | | JavaScript 1.0 |
| option | Option in a Select list. | | JavaScript 1.0 |
| password | Text field on a form where the input is masked by asterisks (*). | | JavaScript 1.0 |
| plugin | Plugin installed in the web browser. | | JavaScript 1.0 |
| radio | Graphical radio button in a group of radio buttons. | | JavaScript 1.0 |
| rangeerror | Thrown when a number is out of its appropriate range. | | JavaScript 1.5 |
| referenceerror | Thrown if reading a variable that does not exist. | | JavaScript 1.5 |
| regexp | Pattern for a regular expression. | | JavaScript 1.2 |
| reset | Reset button on an HTML form that resets all form elements to their default values. | | JavaScript 1.0 |
| screen | Provides information about the display screen and colors. | | JavaScript 1.2 |
| select | A graphical Select list on an HTML form. | | JavaScript 1.0 |
| string | Represents the characters of a string. | | JavaScript 1.0 |
| style | Specifies style characteristics of HTML elements. | | JavaScript 1.0 |
| submit | A graphical button that submits the data of an HTML form when clicked. | | JavaScript 1.0 |
| syntaxerror | A SyntaxError is thrown if there is a syntax error in the JavaScript code. | | JavaScript 1.5 |
| text | Represents a text node in a document. | | JavaScript 1.0 |
| textarea | Multi-line text input field on a form. | | JavaScript 1.0 |
| typeerror | A TypeError is thrown when a value is a different type than what was expected. | | JavaScript 1.5 |
| urierror | A URIError is thrown when there is an exception with URI encoding or decoding. | | JavaScript 1.5 |
| url | URL of the window. | | JavaScript 1.0 |
| window | The Window object represents the web browser window. It provides access to objects to use to manipulate the browsing environment and properties for accessing the object model below it. | | JavaScript 1.0 |