splitStringIntoGroups static method
Implementation
static String splitStringIntoGroups(String input) {
List<String> groups = [];
for (int i = 0; i < input.length; i += 5) {
String group =
input.substring(i, i + 5 > input.length ? input.length : i + 5);
groups.add(group);
}
return groups.join('-');
}