This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
The TextEncoder() constructor returns a newly created utf-8 TextEncoder object.
Syntax
encoder = new TextEncoder();
Parameters
- TextEncoder() takes no parameters since Firefox 48 and Chrome 53
Note: Prior to Firefox 48 and Chrome 53, an encoding type label was accepted as a paramer to the TextEncoder object, since then both browers have removed support for any encoder type other than utf-8, to match the spec. Any type label passed into the TextEncoder constructor will now be ignored and a utf-8 TextEncoder will be created.
Exceptions
- TextEncoder() throws no exceptions since Firefox 48 and Chrome 53
Note: Prior to Firefox 48 and Chrome 53 an exception would be thrown for an unknown encoding type.
Specifications
| Specification | Status | Comment |
|---|---|---|
| Encoding The definition of 'TextEncoder()' in that specification. |
Candidate Recommendation | Initial definition |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | 38 | 19.0 (19.0)[1] (utf-16 is not supported) |
No support | 25 | No support |
| Available in Web Workers | 38 | 20.0 (20.0)[1] | No support | 25 | No support |
| Feature | Android | Firefox Mobile (Gecko) | Firefox OS | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | No support | 19.0 (19.0)[1] | 1.0.1 (19.0)[1] | No support | No support | No support |
| Available in Web Workers | No support | 20.0 (20.0)[1] | 1.0.1 (20.0)[1] | No support | No support | No support |
[1] An earlier, and slightly different, version of the specification was implemented in Gecko 18.
Before Gecko 38, an invalid parameter lead to a TypeError exception instead of the standard RangeError.
See also
- The
TextEncoderinterface it belongs to.