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Input FileUpload required Property

Input FileUpload Object Reference Input FileUpload Object

Example

Find out if a file must be selected/uploaded before submitting a form:

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

The result of x will be:

true

Try it yourself »


Definition and Usage

The required property sets or returns whether a file in the file upload field must be selected/uploaded 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:

fileuploadObject.required

Set the required property:

fileuploadObject.required=true|false

Property Values

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

Technical Details

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


More Examples

Example

Set a file upload field to be a required part of form submission:

document.getElementById("myFile").required = true;

Try it yourself »


Related Pages

HTML reference: HTML <input> required attribute


Input FileUpload Object Reference Input FileUpload Object

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