How to convert one emoji character to Unicode codepoint number in JavaScript?

Question

how to convert this

Answer 1

This is what I use:

const toUni = function (str) {
  if (str.length < 4)
    return str.codePointAt(0).toString(16);
  return str.codePointAt(0).toString(16) + '-' + str.codePointAt(2).toString(16);
};