toChar method
Render as text
Implementation
String toChar() {
assert(index >= Rank.LowAce.index && index <= Rank.Ace.index);
return [
'A',
'2',
'3',
'4',
'5',
'6',
'7',
'8',
'9',
'T',
'J',
'C',
'Q',
'K',
'A',
][index - 1];
}