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Convert the blob object to a string by using URL.

Create a download link to the blob object, and revoke it after the download is initiated. Using Blob to download file Use fetch API to download the script file.So it is best to do a manual 200 (OK) check here. That’s right, fetch will consider it a success as long as there is a server response – Even when there are server errors such as 404 (not found) or 403 (unauthorized). Refresh the page, check Medium ’s site status, or find something interesting to read. Also, take note of the result != 200 check here. How to Download a File Using JavaScript JavaScript in Plain English Write Sign up Sign In 500 Apologies, but something went wrong on our end. Download file in JavaScript From ByteA Sometimes we find ourselves having to handle a file download in a less conventional (or ideal) way. This approach will create text data on the fly and then use JavaScript to create a text file and then download it.

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Captain Obvious, the fetch() request itself.

This should be self-explanatory, but a quick walkthrough: This is the “full version” of the introduction snippet.