INNER CODE UNIT · Dart

fillUpHex

Ephenodrom/Dart-Basic-Utils · lib/src/ColorUtils.dart:88

  static String fillUpHex(String hex) {
    if (!hex.startsWith('#')) {
      hex = '#' + hex;
    }

    if (hex.length == 7) {
      return hex;
    }

    var filledUp = '';
    hex.runes.forEach((r) {
      var char = String.fromCharCode(r);
      if (char == '#') {
        filledUp = filledUp + char;
      } else {
        filledUp = filledUp + char + char;
      }
    });

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