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 attribute contains the contents of the file as a text string.
instanceOfFileReader.readAsText(blob[, encoding]);
blobBlob or File from which to read.| Specification | Status | Comment |
|---|---|---|
| File API The definition of 'FileReader' in that specification. | Working Draft | Initial definition |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | 7 | Yes | 3.6 | 10 | 11 | 6 |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | ? | Yes | Yes | 32 | 11 | 6.1 | ? |
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https://developer.mozilla.org/en-US/docs/Web/API/FileReader/readAsText