Input Datetime required attribute

HTML DOM Input Datetime Objekt

Definition and usage

required Attribute sets or returns whether the date and time field must be filled out before submitting the form.

This property reflects the HTML required attribute.

See also:

HTML Reference Manual:HTML <input> required-Attribut

Example

Example 1

Determine whether the date and time field must be filled out before submitting the form:

var x = document.getElementById("myDatetime").required;

Try it yourself

Example 2

Set the date and time field as a required part of the form submission:

document.getElementById("myDatetime").required = true;

Try it yourself

Syntax

Return the required attribute:

datetimeObject.required

Set the required attribute:

datetimeObject.required = true|false

Attribute value

Value Description
true|false

Specify whether the date and time field should be a required part of the form submission.

  • true - The date and time field is a required part of the form submission
  • false - Default. The date and time field is not a required part of the form submission

Technical details

Return value: Boolean value, if the date and time field is a required part of the form submission, it returns true; wird zurückgegeben, wenn nicht false.

Browser-Unterstützung

Die in der Tabelle angegebenen Zahlen zeigen die erste Browserversion, die diesen Attribut vollständig unterstützt.

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
Unterstützt 10.0 Unterstützt Unterstützt Unterstützt

Hinweis:Das Element <input type="datetime"> zeigt in allen gängigen Browsern außer Safari keine Datums- und Zeitfelder/Kalender an.

HTML DOM Input Datetime Objekt