quran-meta/lib_es/getPageMeta.mjs

Library with meta data and functionality related to Holy Quran

import { meta } from "./const.mjs";
import { findSurahByAyahId } from "./findSurahByAyahId.mjs";
import { PageList } from "./lists/pageList.mjs";
export function getPageMeta(pageNum) {
  if (pageNum < 1 || pageNum > meta.numPages)
    throw new RangeError("pagenum must be between 1 and " + meta.numPages);
  const [curPage, nextPage] = [
    PageList[pageNum],
    PageList[pageNum + 1]
  ];
  return {
    pageNum,
    first: findSurahByAyahId(curPage),
    last: [...findSurahByAyahId(nextPage - 1)]
  };
}