Input Range defaultValue attribute

Objeto ng HTML DOM Input Range

Definition and usage

defaultValue Sets or returns the default value of the slider control.

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

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 find out if the value of the slider control has changed.

Instance

Example 1

Get the default value of the slider control:

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

Try it yourself

Example 2

An example showing the difference between defaultValue and value attributes:

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

Try it yourself

Syntax

Return the defaultValue attribute:

rangeObject.defaultValue

Set the defaultValue attribute:

rangeObject.defaultValue = value

属性值

值 描述
value 指定滑块控件的默认值。

技术细节

返回值： 字符串值，表示滑块控件的默认值。

浏览器支持

表中的数字指出了首个完全支持该属性的浏览器版本。

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
支持 10.0 支持 支持 支持

Objeto ng HTML DOM Input Range