Find Unicode Chars in String

findUnicodeChars.js

// Returns array of objects containing the character it found, and it's hexidecimal string value.
function findUnicodeChars(str) {
  var arr = str.split('');
  return arr.filter(char => {
    return (char.charCodeAt(0) > 255) && char;
  }).map(char => {
    return {
      char: char,
      code: char.charCodeAt(0).toString(16)
    };
  });
}

// Usage
findUnicodeChars('lorem ipsum');     // returns:  [{char: '', code: 'f138'}]
findUnicodeChars('abc');              // returns:  []

// Shortcomings... cannot parse strings with emoji.