Input Month defaultValue attribute

Definition and Usage

defaultValue Sets or returns the default value of the month field.

Note:The default value is HTML value attribute specified in.

The difference between defaultValue and value properties is that defaultValue contains the default value, while value contains the current value after some changes. If there is no change, defaultValue and value are the same (see "More Examples").

The defaultValue property is very useful if you want to check whether the month/year of the month field has changed.

Instance

Example 1

Change the default value of the month field:

document.getElementById("myMonth").defaultValue = "2023-06";

Try it yourself

Example 2

Get the default value of the month field:

var x = document.getElementById("myMonth").defaultValue;

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Example 3

An example showing the difference between the defaultValue and value properties:

var x = document.getElementById("myMonth");
var defaultVal = x.defaultValue;
var currentVal = x.value;

Try it yourself

Syntax

Return the defaultValue property:

monthObject.defaultValue

Set the defaultValue property:

monthObject.defaultValue = value

Attributwert

Wert Beschreibung
value Gibt den Standardwert des Monatsfelds an.

Technische Details

Rückgabewert: Zeichenkettenwert, der den Standardwert des Monatsfelds darstellt.

Browserunterstützung

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

Hinweis:Das Element <input type="month"> zeigt in Firefox keine Datumsfelder/Kalender an.