stringFormatYmd method
Implementation
String? stringFormatYmd(String? date) {
if (date == null) {
return null;
} else {
var data = date.split("-");
if (data.length < 3) data = date.split("/");
if (data.length < 3) return null;
var day = data[0];
var month = data[1];
var year = data[2];
return "$year-$month-$day";
}
}