mix property
String?
get
mix
Implementation
String? get mix {
if (safeLength < 6) return this;
var res = this! + 6.makeKey;
for (var i = 0; i < res.length ~/ 2; i++) {
res = res.substring(res.length - (i + 1)) + res.substring(i + 1, res.length - (i + 1)) + res.substring(0, i + 1);
}
return res;
}