length property

int get length

The HTMLFormElement.length read-only property returns the number of controls in the form element.

You can access the list of the form's controls using the HTMLFormElement.elements property.

This includes both elements that are descendants of the <form> element as well as elements that are made members of the form using their form property.

Elements that are considered for this property are: button, fieldset, input (with the exception that any whose type is "image" are omitted for historical reasons), object, output, select, and textarea.

Implementation

external int get length;