Input Number defaultValue Property
Example
Change the default value of a number field:
document.getElementById("myNumber").defaultValue = "16";
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Definition and Usage
The defaultValue property sets or returns the default value of a number field.
Note: The default value is the value specified in the HTML value attribute.
The difference between the defaultValue and value property, is that defaultValue contains the default value, while value contains the current value after some changes have been made. If there are no changes, defaultValue and value is the same (see "More Examples" below).
The defaultValue property is useful when you want to find out whether the number of a number field have been changed.
Browser Support
The defaultValue property is supported in all major browsers.
Note: The <input type="number"> element is not supported in Internet Explorer 9 and earlier versions.
Syntax
Return the defaultValue property:
numberObject.defaultValue
Set the defaultValue property:
numberObject.defaultValue=value
Property Values
| Value | Description |
|---|---|
| value | Specifies the default value of the number field |
Technical Details
| Return Value: | A String, representing the default value of the number field |
|---|
More Examples
Example
Get the default value of a number field:
var x = document.getElementById("myNumber").defaultValue;
The result of x will be:
2
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Example
An example that shows the difference between the defaultValue and value property:
var x = document.getElementById("myNumber");
var defaultVal =
x.defaultValue;
var currentVal = x.value;
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Input Number Object
