getAyah method
Get a specific ayah by its number
Implementation
Ayah? getAyah(int ayahNumber) {
if (ayahNumber < 1 || ayahNumber > numberOfAyahs) {
return null;
}
return ayat.firstWhere(
(ayah) => ayah.id == ayahNumber,
orElse: () =>
throw ArgumentError('Ayah $ayahNumber not found in surah $id'),
);
}