Input Week defaultValue property

HTML DOM Input Week Object

Definition and usage

defaultValue The property sets or returns the default value of the week field.

Note:The default value is HTML value attribute specified by

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 the example below).

The defaultValue property is very useful if you want to check whether the week in the week field has changed.

Instance

Example 1

Change the default value of the week field:

document.getElementById("myWeek").defaultValue = "2023-W01";

Try it yourself

Example 2

Get the default value of the week field:

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

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Example 3

Show the example of the difference between defaultValue and value properties:

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

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Syntax

Return the defaultValue property:

weekObject.defaultValue

Set the defaultValue property:

weekObject.defaultValue = value

Attribute Value

Value Description
value Specifies the default value of the week field.

Technical Details

Return Value: A string value that represents the default value of the week field.

Browser Support

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
Support 10.0 Support Support Support

Note:The <input type="week"> element does not display any date field/calendar in Firefox.

HTML DOM Input Week Object