Input Week required attribute
Definition and Usage
required Attribute sets or returns whether the day field must be filled out before submitting the form.
This attribute reflects the HTML required attribute.
See also:
HTML Reference Manual:HTML <input> required ιδιότητα
Example
Example 1
Determine whether the day field must be filled out before submitting the form:
var x = document.getElementById("myWeek").required;
Example 2
Set the day field as a required part of the form submission:
document.getElementById("myWeek").required = true;
Syntax
Return the required attribute:
weekObject.required
Set the required attribute:
weekObject.required = true|false
Attribute value
| Value | Description |
|---|---|
| true|false |
Specify whether the day field should be a required part of the form submission.
|
Τεχνικές λεπτομέρειες
| Επιστροφή τιμής: | Boolean value, if the week field is a required part of the form submission, it returns true；αν όχι, επιστρέφει false. |
|---|
Υποστήριξη περιηγητή
| Chrome | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|
| Chrome | Edge | Firefox | Safari | Opera |
| Υποστήριξη | 10.0 | Υποστήριξη | Υποστήριξη | Υποστήριξη |
Σημείωση:Το στοιχείο <input type="week"> δεν εμφανίζει κανένα πεδίο ημερομηνίας/ημερολόγιο στο Firefox.
