JavaScript: The Definitive Guide, 6th Edition

Name

Form — a <form> in an HTML document

Inherits from

Node, Element

Synopsis

The Form object represents a <form> element in an HTML document. The elements property is an HTMLCollection that provides convenient access to all elements of the form. The submit() and reset() methods allow a form to be submitted or reset under program control.

Each form in a document is represented as an element of the document.forms[] array. The elements of a form (buttons, input fields, checkboxes, and so on) are collected in the array-like object Form.elements. Named form controls can be referenced directly by name: the control name is used as a property name on the Form object. Thus, to refer to an Input element with a name attribute of “phone” within a form f, you might use the JavaScript expression f.phone.

See HTML Forms for more on HTML forms. See FormControl, FieldSet, Input, Label, Select, and TextArea for more on the form controls that can appear in a form.

This page documents HTML5 form features which, at the time of this writing, were not yet widely implemented.

Properties

Most of the properties listed here simply mirror the HTML attributes of the same name.

string acceptCharset

A list of one or more allowed character sets in which the form data may be encoded for submission.

string action

The URL to which the form should be submitted.

string autocomplete

The string “on” or “off”. If “on”, the browser can prefill form controls with saved values from a previous visit to the page.

readonly HTMLFormControlsCollection ...