The HTMLFormElement.acceptCharset property represents a list of the supported character encodings for the given FORM element. This list can be comma- or space-separated.
The HTMLFormElement.elements property returns an HTMLFormControlsCollection (HTML 4HTMLCollection) of all the form controls contained in the FORM element, with the exception of input elements which have a type attribute of image.
Constructor for creating an HTMLOptionElement. The Option constructor is from the very early days of DOM scripting and has non–standard syntax, but has ubiquitous support in browsers.
HTMLOptionsCollection is an interface representing a collection of HTML option elements (in document order) and offers methods and properties for traversing the list as well as optionally altering its items. This type is returned solely by the "options" property of select.
The HTMLOutputElement interface provides properties and methods (beyond those inherited from HTMLElement) for manipulating the layout and presentation of <output> elements.