Form enctype attribute

HTML DOM Form objekt

Definition and usage

enctype Sets or returns the value of the enctype attribute in the form.

The HTML enctype attribute specifies how form data should be encoded before being sent to the server.

By default, form data is encoded as "application/x-www-form-urlencoded". This means that all characters are encoded before being sent to the server (spaces are converted to "+" symbols, and special characters are converted to ASCII HEX values).

See also:

HTML reference manual:HTML <form> enctype-attribut

Example

Example 1

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

var x = document.getElementById("myForm").enctype;

Try it yourself

Example 2

Change the enctype value to set how the form data should be encoded before sending it to the server:

document.getElementById("myForm").enctype = "multipart/form-data";

Try it yourself

Syntax

Return enctype attribute:

formObject.enctype

Set enctype attribute:

formObject.enctype = "application/x-www-form-urlencoded,multipart/form-data,text/plain"

Attribute value

Value Description
application/x-www-form-urlencoded All characters are encoded before sending (default).
multipart/form-data Inga tecken kódas. Detta värde är nödvändigt när du använder formulär med filuppladdningskontroller.
text/plain Mellanslag konverteras till "+"-tecken, men specialtecken kódas inte.

Tekniska detaljer

Returvärde: Strängvärde som anger hur formulardata bör kódas innan den skickas till servern.

Webbläsarstöd

Numreringen i tabellen anger den första webbläsarversionen som helt stöder detta attribut.

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
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HTML DOM Form objekt