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js有没有UTF16字节数组转字符串的方法

找遍全网,似乎只有UTF8字节数组转字符串的方法,找不到UTF16字节数组转字符串的办法,有没有朋友能够提供思路,谢谢

这个是UTF8字节数组转字符串的方法

复制代码
    //UTF-8字节数组转字符串    
    function utf8ByteToUnicodeStr(utf8Bytes) {
var unicodeStr = "";
for (var pos = 0; pos < utf8Bytes.length;) {
var flag = utf8Bytes[pos];
var unicode = 0;
if ((flag >>> 7) === 0) {
unicodeStr += String.fromCharCode(utf8Bytes[pos]);
pos += 1;
} else if ((flag & 0xFC) === 0xFC) {
unicode = (utf8Bytes[pos] & 0x3) << 30;
unicode |= (utf8Bytes[pos + 1] & 0x3F) << 24;
unicode |= (utf8Bytes[pos + 2] & 0x3F) << 18;
unicode |= (utf8Bytes[pos + 3] & 0x3F) << 12;
unicode |= (utf8Bytes[pos + 4] & 0x3F) << 6;
unicode |= (utf8Bytes[pos + 5] & 0x3F);
unicodeStr += String.fromCodePoint(unicode);
pos += 6;
} else if ((flag & 0xF8) === 0xF8) {
unicode = (utf8Bytes[pos] & 0x7) << 24;
unicode |= (utf8Bytes[pos + 1] & 0x3F) << 18;
unicode |= (utf8Bytes[pos + 2] & 0x3F) << 12;
unicode |= (utf8Bytes[pos + 3] & 0x3F) << 6;
unicode |= (utf8Bytes[pos + 4] & 0x3F);
unicodeStr += String.fromCodePoint(unicode);
pos += 5;
} else if ((flag & 0xF0) === 0xF0) {
unicode = (utf8Bytes[pos] & 0xF) << 18;
unicode |= (utf8Bytes[pos + 1] & 0x3F) << 12;
unicode |= (utf8Bytes[pos + 2] & 0x3F) << 6;
unicode |= (utf8Bytes[pos + 3] & 0x3F);
unicodeStr += String.fromCodePoint(unicode);
pos += 4;
} else if ((flag & 0xE0) === 0xE0) {
unicode = (utf8Bytes[pos] & 0x1F) << 12;;
unicode |= (utf8Bytes[pos + 1] & 0x3F) << 6;
unicode |= (utf8Bytes[pos + 2] & 0x3F);
unicodeStr += String.fromCharCode(unicode);
pos += 3;
} else if ((flag & 0xC0) === 0xC0) { //110
unicode = (utf8Bytes[pos] & 0x3F) << 6;
unicode |= (utf8Bytes[pos + 1] & 0x3F);
unicodeStr += String.fromCharCode(unicode);
pos += 2;
} else {
unicodeStr += String.fromCharCode(utf8Bytes[pos]);
pos += 1;
}
}
return unicodeStr;
}
复制代码

回答

http://www.thesharepoint.nl/pb/javascript/utf-16-string-tobytearray-in-javascript/

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