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8 lines
245 B
Dart
8 lines
245 B
Dart
extension StringExtension on String {
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String capitalize() => isEmpty ? this : this[0].toUpperCase() + substring(1);
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String removeSpaces() => replaceAll(RegExp(r' |\n|\r|\s|\t'), '');
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bool hasOnlyDigits() => int.tryParse(this) != null;
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}
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