The text()
method in the Blob
interface returns a Promise
that resolves with a string containing the contents of the blob, interpreted as UTF-8.
Blob.text()
Syntax
text()
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 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
text |
76
|
79
|
69
|
No
|
63
|
14
|
76
|
76
|
79
|
54
|
14
|
12.0
|
See also
© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Blob/text