quran-meta/lib_es/prevAyah.mjs

Library with meta data and functionality related to Holy Quran

import { checkValidSurah } from "./validation.mjs";
import { findAyahIdBySurah } from "./findAyahIdBySurah.mjs";
import { findSurahAyahByAyahId } from "./findSurahAyahByAyahId.mjs";

//#region src/prevAyah.ts
/**
* Get the previous ayah for the given surah and ayah number.
* @param surah - The surah number.
* @param ayah - The ayah number within the surah.
* @param data - The Lists object containing SurahList.
* @returns The surah and ayah number of the previous ayah.
*/
function prevAyah(surah, ayah, data) {
	checkValidSurah(surah, data.meta);
	const ayahId = findAyahIdBySurah(surah, ayah, data);
	return findSurahAyahByAyahId(ayahId == 1 ? data.meta.numAyahs : ayahId - 1, data);
}

//#endregion
export { prevAyah };