How can i create a text file using java script in Unicode encoding?

Question

Unicode Encoding... Gettting UTF-8 I am using this code...

    var content = 'demo';
    uriContent = "data:application/text," + encodeURIComponent(content);
    var link = document.createElement('a');
    link.setAttribute('href', uriContent);
    link.setAttribute('download', '22ddd' + '.txt');
    link.click();

The content in the text file will be in Hindi Language which will be further converted into APS fonts. The font converter software available with the client works when the encoding is Unicode. I am able to download the text file properly but it is in UTF-8 encoding

Have you looked at this post? stackoverflow.com/questions/5403912/… — oneNiceFriend
– oneNiceFriend, Commented Mar 2, 2017 at 11:58
@oneNiceFriend: I don't think the questioner wants to use ActiveX to create a textfile. It's old and works only with Internet Explorer. — ventiseis
– ventiseis, Commented Mar 2, 2017 at 14:03
Please can you add to your question what isn't currently working? What's wrong with the encoding? UTF-8 looks like an unicode encoding for me.. — ventiseis
– ventiseis, Commented Mar 2, 2017 at 14:04

ventiseis · Accepted Answer · 2017-03-03 11:23:38Z

1

The documentation says,encodeURIComponent generates only UTF-8. So we must try something different.

I tried to put some pieces together:

a modern browser (Chrome 56) and
a text-econding polyfill

and it works (for me):

<html>
    <body>
        <script>window.TextEncoder = window.TextDecoder = null;</script>
        <script src="encoding-indexes.js"></script>
        <script src="encoding.js"></script> 
        <script>           
            demo = function() {
                var content = 'demo';
                var uint8array = new TextEncoder( 'utf-16', { NONSTANDARD_allowLegacyEncoding: true }).encode(content);
                var blob = new Blob([uint8array], {type : "octet/stream" });
                var url = URL.createObjectURL(blob);
                var link = document.createElement('a');
                link.setAttribute('href', url);
                link.setAttribute('download', '22ddd' + '.txt');
                link.click();       
            };
        </script>
        <button onClick="demo();">
            Test
        </button>
    </body>
</html>

answered Mar 3, 2017 at 11:23

ventiseis

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1 Comment

ventiseis Over a year ago

Please note that I don't understand why I have to put uint8array in an array to create the blob. Any explanation?

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