Input Date requiredProperty

Input Date 对象参考手册Input Date Object

Examples

Check whether the date field is required before form submission:

var x = document.getElementById("myDate").required;
xThe output result is:
true

Try it yourself »

Definition and Usage

The required property is used to set or return whether the date field is required before form submission.

This property reflects the HTML required attribute.


Browser Support

Internet ExplorerFirefoxOperaGoogle ChromeSafari

All mainstream browsers support the required attribute, except Safari and Internet Explorer 9 and earlier IE versions.

Note:Internet Explorer or Firefox browsers do not support the <input type="date"> element.


Syntax

Return the required property:

dateObject.required

Set the required property:

dateObject.required=true|false

Property Values

Value Description
true|false Describes whether the date field is a required field in the form.
  • true - The date field is a required field in the form
  • false - Default. The date field is not a required field in the form

Technical Details

Return Value: Boolean value, returns true if the date field is a required field in the form, otherwise returns false


More Examples

Examples

Set the date field as a required part of the form:

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

Try it yourself »


Related Pages

HTML Reference Manual:HTML <input> required Attribute


Input Date 对象参考手册Input Date Object Other Extensions