Input Number defaultValue attribute

Objek Input Number DOM HTML

Definition and usage

defaultValue Sets or returns the default value of a numeric field.

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

The difference between defaultValue and value attributes 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 attribute is very useful if you want to check whether the value of a numeric field has changed.

Example

Example 1

Change the default value of a numeric field:

document.getElementById("myNumber").defaultValue = "16";

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Example 2

Get the default value of a numeric field:

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

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Example 3

An example showing the difference between defaultValue and value attributes:

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

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Syntax

Return defaultValue attribute:

numberObject.defaultValue

Atur atribut defaultValue:

numberObject.defaultValue = value

Nilai atribut

Nilai Deskripsi
value Tentukan nilai baku field numerik.

Detil Teknis

Nilai kembalian: Nilai string, yang menyatakan nilai baku untuk field numerik.

Dukungan Peramban

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Objek Input Number DOM HTML