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Input Number required Property

Input Number Object Reference Input Number Object

Example

Find out if a number field must be filled out before submitting a form:

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

The result of x will be:

true
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Definition and Usage

The required property sets or returns whether a number field must be filled out before submitting a form.

This property reflects the HTML required attribute.


Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The required property is supported in all major browsers, except Internet Explorer 9 and earlier versions, and Safari.


Syntax

Return the required property:

numberObject.required

Set the required property:

numberObject.required=true|false

Property Values

Value Description
true|false Specifies whether a number field should be a required part of form submission.
  • true - The number field is a required part of form submission
  • false - Default. The number field is not a required part of form submission

Technical Details

Return Value: A Boolean, returns true if the number field is a required part of form submission, otherwise it returns false

More Examples

Example

Set a number field to be a required part of form submission:

document.getElementById("myNumber").required = true;
Try it Yourself »

Related Pages

HTML reference: HTML <input> required attribute


Input Number Object Reference Input Number Object