toHex method Null safety

String toHex(
  1. {bool leadingHashSign = true}
)

Prefixes a hash sign if leadingHashSign is set to true (default is true).

Implementation

String toHex({bool leadingHashSign = true}) => '${leadingHashSign ? '#' : ''}'
    '${alpha.toRadixString(16).padLeft(2, '0')}'
    '${red.toRadixString(16).padLeft(2, '0')}'
    '${green.toRadixString(16).padLeft(2, '0')}'
    '${blue.toRadixString(16).padLeft(2, '0')}';