How to convert HTML Entity (Hexadecimal) to UTF-16 (two pair hex)

Question

How can I convert html entity 😍 to \uD83D\uDE0D in JavaScript? (react native) (emoji )

https://stackoverflow.com/questions/7394748/whats-the-right-way-to-decode-a-string-that-has-special-html-entities-in-it/7394787#7394787 — Roland Starke, Apr 20 '18 at 12:16
@RolandStarke: If it works in React Native, yeah. (I have no idea whether it does.) — T.J. Crowder, Apr 20 '18 at 12:17

score 0 · Accepted Answer · answered Apr 23 '18 at 15:09

0

This he library can decode

import { decode } from 'he';

decode('&#x1F60D;') // outputs

answered Apr 23 '18 at 15:09

Codler

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score -1 · Answer 2 · answered Dec 20 '18 at 05:55

Try String.fromCodePoint(...)

String.fromCodePoint(42);       // "*"
String.fromCodePoint(65, 90);   // "AZ"
String.fromCodePoint(0x404);    // "\u0404"
String.fromCodePoint(0x2F804);  // "\uD87E\uDC04"
String.fromCodePoint(194564);   // "\uD87E\uDC04"
String.fromCodePoint(0x1D306, 0x61, 0x1D307) // "\uD834\uDF06a\uD834\uDF07"

String.fromCodePoint('_');      // RangeError
String.fromCodePoint(Infinity); // RangeError
String.fromCodePoint(-1);       // RangeError
String.fromCodePoint(3.14);     // RangeError
String.fromCodePoint(3e-2);     // RangeError
String.fromCodePoint(NaN);      // RangeError

String.fromCodePoint() MDN Doc

How to convert HTML Entity (Hexadecimal) to UTF-16 (two pair hex)

2 Answers2