Encoding API
The Encoding API provides a mechanism for handling text in various character encodings, including legacy non-UTF-8 encodings.
The API provides two interfaces: TextDecoder and TextEncoder.
Interfaces
- A shim allowing to use this interface in browsers that don't support it.
-
StringView – a C-like representation of strings based on typed arrays.
Specifications
| Specification | Status | Comment |
| Encoding | Living Standard | Initial definition. |
TextDecoder
|
Desktop |
|
Chrome |
Edge |
Firefox |
Internet Explorer |
Opera |
Safari |
| Basic support |
38 |
? |
19
- 19
- 18
- Implemented a slightly different version of the spec.
|
No |
25 |
10.1 |
| Available in workers |
38 |
? |
20 |
No |
25 |
10.1 |
TextDecoder() constructor |
38 |
? |
19
- 19
- 18
- Implemented a slightly different version of the spec.
|
No |
25 |
10.1 |
decode |
38 |
? |
19
- 19
- 18
- Implemented a slightly different version of the spec.
|
No |
25 |
10.1 |
encoding |
38 |
? |
19
- 19
- 18
- Implemented a slightly different version of the spec.
|
No |
25 |
10.1 |
fatal |
? |
? |
? |
? |
? |
10.1 |
ignoreBOM |
? |
? |
? |
? |
? |
10.1 |
|
Mobile |
|
Android webview |
Chrome for Android |
Edge Mobile |
Firefox for Android |
Opera for Android |
iOS Safari |
Samsung Internet |
| Basic support |
38 |
38 |
? |
19
- 19
- 18
- Implemented a slightly different version of the spec.
|
? |
10.1 |
? |
| Available in workers |
38 |
38 |
? |
20 |
? |
10.1 |
? |
TextDecoder() constructor |
38 |
38 |
? |
19
- 19
- 18
- Implemented a slightly different version of the spec.
|
? |
10.1 |
? |
decode |
38 |
38 |
? |
19
- 19
- 18
- Implemented a slightly different version of the spec.
|
? |
10.1 |
? |
encoding |
38 |
38 |
? |
19
- 19
- 18
- Implemented a slightly different version of the spec.
|
? |
10.1 |
? |
fatal |
? |
? |
? |
? |
? |
10.1 |
? |
ignoreBOM |
? |
? |
? |
? |
? |
10.1 |
? |
TextEncoder
|
Desktop |
|
Chrome |
Edge |
Firefox |
Internet Explorer |
Opera |
Safari |
|
Basic support
|
38 |
? |
19
- 19
- 18
- Firefox 18 implemented an earlier and slightly different version of the specification.
|
No |
25 |
10.1 |
| Available in Web Workers
|
38 |
? |
20 |
No |
25 |
10.1 |
TextEncoder() constructor
|
53
- 53
- Does not accept parameters. Supports only
utf-8 encoding.
- 38 — 53
- Throws
RangeError exception for unknown encoding types.
|
? |
48
- 48
- The constructor accepts an encoding type label argument, but the value is ignored. Only
utf-8 encoding is supported.
- 38 — 48
- If the encoding type label argument is invalid, then a
RangeError exception is thrown.
- 19 — 38
- If the encoding type label argument is invalid, then a
TypeError exception is thrown.
- 18
- Firefox 18 implemented an earlier and slightly different version of the specification.
|
No |
25 |
10.1 |
encoding
|
38 |
? |
19
- 19
- 18
- Firefox 18 implemented an earlier and slightly different version of the specification.
|
No |
25 |
10.1 |
encode
|
38 |
? |
19
- 19
- 18
- Firefox 18 implemented an earlier and slightly different version of the specification.
|
No |
25 |
10.1 |
|
Mobile |
|
Android webview |
Chrome for Android |
Edge Mobile |
Firefox for Android |
Opera for Android |
iOS Safari |
Samsung Internet |
|
Basic support
|
38 |
38 |
? |
19
- 19
- 18
- Firefox 18 implemented an earlier and slightly different version of the specification.
|
? |
10.1 |
? |
| Available in Web Workers
|
38 |
38 |
? |
20 |
? |
10.1 |
? |
TextEncoder() constructor
|
38 |
38 |
? |
48
- 48
- The constructor accepts an encoding type label argument, but the value is ignored. Only
utf-8 encoding is supported.
- 38 — 48
- If the encoding type label argument is invalid, then a
RangeError exception is thrown.
- 19 — 38
- If the encoding type label argument is invalid, then a
TypeError exception is thrown.
- 18
- Firefox 18 implemented an earlier and slightly different version of the specification.
|
? |
10.1 |
? |
encoding
|
38 |
38 |
? |
19
- 19
- 18
- Firefox 18 implemented an earlier and slightly different version of the specification.
|
? |
10.1 |
? |
encode
|
38 |
38 |
? |
19
- 19
- 18
- Firefox 18 implemented an earlier and slightly different version of the specification.
|
? |
10.1 |
? |