Convert a UTF-16 encoded string to an array of integers using UTF-8 encoding.
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Convert a [UTF-16][utf-16] encoded string to an array of integers using [UTF-8][utf-8] encoding.
bash
npm install @stdlib/string-utf16-to-utf8-arrayscript tag without installation and bundlers, use the [ES Module][es-module] available on the [esm][esm-url] branch (see [README][esm-readme]).deno][deno-url] branch (see [README][deno-readme] for usage intructions).umd][umd-url] branch (see [README][umd-readme]).javascript
var utf16ToUTF8Array = require( '@stdlib/string-utf16-to-utf8-array' );array of integers using [UTF-8][utf-8] encoding.javascript
var out = utf16ToUTF8Array( '☃' );
// returns [ 226, 152, 131 ]U+0000 to U+D7FF and U+E000 to U+FFFF).U+10000 to U+10FFFF and encodes U+10000-U+10FFFF by subtracting 0x10000 from the code point, expressing the result as a 20-bit binary, and splitting the 20 bits of 0x0-0xFFFFF as upper and lower 10-bits. The respective 10-bits are stored in two 16-bit words: a high and a low surrogate.text
0x00000000 - 0x0000007F:
0xxxxxxx
0x00000080 - 0x000007FF:
110xxxxx 10xxxxxx
0x00000800 - 0x0000FFFF:
1110xxxx 10xxxxxx 10xxxxxx
0x00010000 - 0x001FFFFF:
11110xxx 10xxxxxx 10xxxxxx 10xxxxxxx represents a code point bit. Only the shortest possible multi-byte sequence which can represent a code point is used.javascript
var utf16ToUTF8Array = require( '@stdlib/string-utf16-to-utf8-array' );
var values;
var out;
var i;
values = [
'Ladies + Gentlemen',
'An encoded string!',
'Dogs, Cats & Mice',
'☃',
'æ',
'𐐷'
];
for ( i = 0; i < values.length; i++ ) {
out = utf16ToUTF8Array( values[ i ] );
console.log( '%s: %s', values[ i ], out.join( ',' ) );
}
