HTML DOM Button formEnctype Property

# Button formEnctype Property

Button Object

## Example

Return how form-data should be encoded before sending it to a server:

var x = document.getElementById("myBtn").formEnctype;

The result of x could be:

text/plain
Try it yourself »

## Definition and Usage

The formEnctype property sets or returns the value of the formenctype attribute of a button.

The formenctype attribute specifies how form-data should be encoded before sending it to a server. This attribute overrides the form's enctype attribute.

The formenctype attribute is only used for buttons with type="submit".

Note: The formenctype attribute is new for the <button> element in HTML5.

## Browser Support

The formEnctype property is supported in all major browsers.

Note: The formEnctype property is not supported in Internet Explorer 9 and earlier versions.

## Syntax

Return the formEnctype property:

buttonObject.formEnctype

Set the formEnctype property:

buttonObject.formEnctype="application/x-www-form-urlencoded,multipart/form-data,text/plain"

## Property Values

Value | Description
--- | ---
application/x-www-form-urlencoded | All characters are encoded before sent (this is default)
multipart/form-data | No characters are encoded. This value is required when you are using forms that have a file upload control
text/plain | Spaces are converted to "+" symbols, but no special characters are encoded

## Technical Details

Return Value: | A String, representing the type of content that is used to submit the form to the server

## More Examples

## Example

Change the value of the formenctype attribute of a button from "text/plain" to "application/x-www-form-urlencoded":

document.getElementById("myBtn").formEnctype = "application/x-www-form-urlencoded";
Try it yourself »

## Example

Another example on returning the formEnctype property:

var x = document.getElementById("myBtn").formEnctype;
Try it yourself »

## Related Pages

HTML reference: HTML <button> formenctype attribute

Button Object

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