November 2001
Intermediate to advanced
936 pages
68h 43m
English
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Forms
The
forms[] array of the
Document
object contains Form objects that represent any
<form> elements in the document. Because
HTML forms contain push buttons, text input fields, and the other
input elements that usually comprise the GUI of a web application, the Form
object is very important in client-side JavaScript. The Form object
has an elements[]
property that contains objects that
represent the HTML input elements contained within the form. These
Element objects allow JavaScript programs to set default values in
the form and to read the user’s input from the form. They are
also important sites for the event handlers that add interactivity to
a program.
Because forms and their elements are such a large and important part
of client-side JavaScript programming, they deserve a chapter of
their own. We will return to the forms[] array and
the Form object in Chapter 15.