Input DatetimeLocal required attribute

Definition and Usage

required Sets or returns whether the local 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-Eigenschaft

Instance

Example 1

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

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

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Example 2

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

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

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Syntax

Return the required attribute:

datetimelocalObject.required

Set the required attribute:

datetimelocalObject.required = true|false

Attribute value

Value Description
true|false

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

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

Technical details

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

Browser-Unterstützung

Die Zahlen in der Tabelle weisen auf die erste Browser-Version hin, die das 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-local"> zeigt in Firefox keine任何日期时间字段/日历.