Blob: text() method
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2021.
Note: This feature is available in Web Workers.
The text() method of the
Blob interface returns a Promise that resolves with a
string containing the contents of the blob, interpreted as UTF-8.
Syntax
js
text()
Parameters
None.
Return value
A promise that resolves with a string which contains the blob's data as a text string. The data is always presumed to be in UTF-8 format.
Usage notes
The FileReader method readAsText() is an older method that performs a similar function.
It works on both Blob and File objects. There are two key differences:
Blob.text()returns a promise, whereasFileReader.readAsText()is an event based API.Blob.text()always uses UTF-8 as encoding, whileFileReader.readAsText()can use a different encoding depending on the blob's type and a specified encoding name.
Specifications
| Specification |
|---|
| File API # dom-blob-text |
Browser compatibility
| desktop | mobile | server | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
text()
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- Has more compatibility info.