suffix method
Adds a suffix to the number.
This method takes an optional parameter suffix, which is a string that will be appended to the number. If suffix is not provided, it defaults to an ordinal suffix (e.g. 1st, 2nd, 3rd, etc.).
Example usage:
print(5.suffix()); // prints "5th"
print(5.suffix('%')); // prints "5%"
Implementation
String suffix([String suffix = '']) {
if (suffix.isNotEmpty) {
return '$this$suffix';
}
switch (this % 100) {
case 11:
case 12:
case 13:
return '${this}th';
default:
switch (this % 10) {
case 1:
return '${this}st';
case 2:
return '${this}nd';
case 3:
return '${this}rd';
default:
return '${this}th';
}
}
}