Could not convert from SJIS to UTF-8

[huynh-duc-mulodo]

When I used below codes, data was not converted correctly.　Output was not displayed as Japanese, but strange characters.
コンバートのため下記のソースコードを使ったが、出力のデータは日本語で表示せずに変な文字で表示ました。
「観é�³ Kå­�,ç�·,ç��å·� Yå­�,女,」

var file = fileUploader.files[0];
var reader = new FileReader();
reader.readAsBinaryString(file);
reader.onload = function() {
     console.log(originalText);
     var inputArray = str2Array(originalText); //sjis
     var outputArray = Encoding.convert(inputArray, 'UTF8', 'SJIS');
     var result = Encoding.codeToString(outputArray);
     console.log(result);
}

function str2Array(str) {
     var array = [],i,il=str.length;
     for(i=0;i<il;i++) array.push(str.charCodeAt(i));
     return array;
}

[huynh-duc-mulodo]

Actually, the method codeToString should not be used in this case. It seems to be used for 16bit-based converting

[polygonplanet]

What is originalText string?

[huynh-duc-mulodo]

hello, originalText is data was read from file which is in SJIS encode

[polygonplanet]

Maybe, I think that the character code you are looking for is "Unicode".
"Unicode" is JavaScript's encoding, "UTF-8" is not JavaScript internal encoding.

var outputArray = Encoding.convert(inputArray, 'UNICODE', 'SJIS');

[huynh-duc-mulodo]

Actually I used var outputArray = Encoding.convert(inputArray, 'UNICODE', 'SJIS'); already. But I need to convert to UTF8 because I'm importing data into Salesforce platform. So the way I fixed this problem is not to use Encoding.codeToString. Instead of that, I came up with using

function arrayToString(uintArray) {
            var encodedString = String.fromCharCode.apply(null, uintArray),
                decodedString = decodeURIComponent(escape(encodedString));
            return decodedString;
        }

[polygonplanet]

Encoding.codeToString uses String.fromCharCode.apply(null, code) internally. Just making sure not to cause an RangeError when it is a large string.

[huynh-duc-mulodo]

Thanks for your reminding me of potential problems. I should apply library's method with a little bit of change

function arrayToString(uintArray) {
            var encodedString = Encoding.codeToString(uintArray);
            var decodedString = decodeURIComponent(escape(encodedString));
            return decodedString;
        }