Return how form-data should be encoded before sending it to a server:
The result of x could be:
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.
The formEnctype property is supported in all major browsers.
Note: The formEnctype property is not supported in Internet Explorer 9 and earlier versions.
Return the formEnctype property:
Set the formEnctype property:
Value | Description |
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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 |
Return Value: | A String, representing the type of content that is used to submit the form to the server |
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Change the value of the formenctype attribute of a button from "text/plain" to "application/x-www-form-urlencoded":
Another example on returning the formEnctype property:
HTML reference: HTML <button> formenctype attribute