split static method
Split string at first occurrence of delimiter
Implementation
static List<String>? split(String? toSplit, String? delimiter) {
if (!hasLength(toSplit) || !hasLength(delimiter)) return null;
final index = toSplit!.indexOf(delimiter!);
if (index < 0) return null;
return [
toSplit.substring(0, index),
toSplit.substring(index + delimiter.length)
];
}