FileReader.readAsText() - Web APIs 编辑

The readAsText() method is used to read the contents of the specified Blob or File. When the read operation is complete, the readyState is changed to DONE, the loadend event is triggered, and the result property contains the contents of the file as a text string.

Newer API avaliable
The Blob.text() method is a newer promise-based API to read a file as text.

Syntax

instanceOfFileReader.readAsText(blob[, encoding]);

Parameters

blob

The Blob or File from which to read.

encoding Optional

A string specifying the encoding to use for the returned data. By default, UTF-8 is assumed if this parameter is not specified.

Specifications

Browser compatibility

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See also

• FileReader