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Sort numbers from 10 to 100 by their English word representation
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| /* | |
| * Sort numbers from 10 to 100 by their English word representation | |
| * https://gist.github.com/PlugFox/80541bd650f17a0796780f7f953a1dda | |
| * https://dartpad.dev?id=80541bd650f17a0796780f7f953a1dda | |
| * Mike Matiunin <[email protected]>, 25 October 2024 | |
| */ | |
| const units = [ | |
| 'zero', | |
| 'one', | |
| 'two', | |
| 'three', | |
| 'four', | |
| 'five', | |
| 'six', | |
| 'seven', | |
| 'eight', | |
| 'nine', | |
| 'ten', | |
| 'eleven', | |
| 'twelve', | |
| 'thirteen', | |
| 'fourteen', | |
| 'fifteen', | |
| 'sixteen', | |
| 'seventeen', | |
| 'eighteen', | |
| 'nineteen', | |
| ]; | |
| const tens = [ | |
| '', // 0..9 are covered by units | |
| '', // 10..19 are covered by units | |
| 'twenty', | |
| 'thirty', | |
| 'forty', | |
| 'fifty', | |
| 'sixty', | |
| 'seventy', | |
| 'eighty', | |
| 'ninety', | |
| ]; | |
| // Convert number to words | |
| String n2w(int number) => switch (number) { | |
| <= 19 => units[number], | |
| < 100 when number % 10 == 0 => tens[number ~/ 10], | |
| < 100 => '${tens[number ~/ 10]}-${units[number % 10]}', | |
| 100 => 'one hundred', | |
| _ => 'number is out of range', | |
| }; | |
| void main() => print([ | |
| for (int i = 10; i <= 100; i++) (i, n2w(i)), | |
| ]..sort((a, b) => a.$2.compareTo(b.$2))); |
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