JS: Char to UTF-8 Encoding ð
Here is a function to convert character to its UTF-8 Encoding.
/* xah_codepoint_to_utf8_hexStr(cp) return a string of hexadecimal that's the utf8 encoding of the char with codepoint cp (a integer). The result string, space is inserted between every two hexadecimal digits (byte). Digits are in CAPITAL case. URL http://xahlee.info/js/js_utf-8_encoding.html version 2022-10-17 */ const xah_codepoint_to_utf8_hexStr = (( xx, ) => ((xx <= 127) ? xx.toString(16).toUpperCase() : encodeURI(String.fromCodePoint(xx)).replace( RegExp("%", "g"), " ", ).trimStart())); console.log(xah_codepoint_to_utf8_hexStr(128514) === "F0 9F 98 82"); /* character: ð codepoint 128514 hexadecimal 1f602 utf-8: F0 9F 98 82 utf-16: D8 3D DE 02 */
Encode a String to UTF8
to encode a string to UTF8, returning array of bytes, do
console.log( (new TextEncoder()).encode("ð"), ); // Uint8Array(4) [ 240, 159, 152, 130 ]
it returns a Uint8Array
Reference: https://developer.mozilla.org/en-US/docs/Web/API/TextEncoder