HTMLFormElement.length

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

Syntax

integer = form.length

Example

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

Specifications

License

© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/htmlformelement/length