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.
TextEncoder takes a stream of code points as input and emits a stream of bytes. For a more scalable, non-native library, see
StringView – a C-like representation of strings based on typed arrays.
Before Firefox 48 the
TextEncoder support encoding string to
gbk, ... Firefox dropped support any other encoding types except utf-8 since Firefox 48. (relative ticket). Chrome also claimmed to drop support legacy encoding from TextEncoder except utf-8 and utf-16(feature link). In Firefox any encoding type passed to the contructor will be ignored and an utf-8 TextEncoder will be created.
There is a polyfill implementation to support all the legacy encoding in github.
TextEncoder interface doesn't inherit any property.
- Is a
DOMStringcontaining the name of the encoder, that is a string describing the method the
- Returns a newly constructed
TextEncoderthat will generate a byte stream with the encoding method specified in parameters.
TextEncoder interface doesn't inherit any method.
- Returns a
Uint8Arraycontaining the text encoded with the method for this specific
The definition of 'TextEncoder' in that specification.
|Candidate Recommendation||Initial definition.|
|Feature||Chrome||Firefox (Gecko)||Internet Explorer||Opera||Safari (WebKit)|
|Basic support||38||19.0 (19.0) ||No support||25||No support|
|Available in Web Workers||38||20.0 (20.0)||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) ||1.0.1 (19.0)||No support||?||No support|
|Available in Web Workers||No support||20.0 (20.0)||1.0.1 (20.0)||No support||?||No support|
 An earlier, and slightly different, version of the specification was implemented in Firefox 18.