HTMLFormElement: length property - Web APIs | MDN (original) (raw)

Baseline

Widely available

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

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

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

Elements that are considered for this property are: ,, (with the exception that any whose type is "image" are omitted for historical reasons),, , , and .

Value

A number.

Examples

if (document.getElementById("form1").length > 1) {
  // more than one form control here
}

Specifications

Browser compatibility