ci: format all files with prettier to fix format:check

eslint.config.mjs

@@ -1,20 +1,20 @@
-import tsParser from '@typescript-eslint/parser';
+import tsParser from "@typescript-eslint/parser";
-import tsPlugin from '@typescript-eslint/eslint-plugin';
+import tsPlugin from "@typescript-eslint/eslint-plugin";
-import eslintConfigPrettier from 'eslint-config-prettier';
+import eslintConfigPrettier from "eslint-config-prettier";
-import { typescript } from '@acamarata/eslint-config';
+import { typescript } from "@acamarata/eslint-config";
 
 export default [
   {
-    files: ['**/*.ts'],
+    files: ["**/*.ts"],
-    plugins: { '@typescript-eslint': tsPlugin },
+    plugins: { "@typescript-eslint": tsPlugin },
     languageOptions: {
       parser: tsParser,
       parserOptions: { project: true, tsconfigRootDir: import.meta.dirname },
     },
   },
-  ...typescript.map((config) => ({ files: ['**/*.ts'], ...config })),
+  ...typescript.map((config) => ({ files: ["**/*.ts"], ...config })),
   eslintConfigPrettier,
   {
-    ignores: ['dist/', 'node_modules/', 'test.mjs', 'test-cjs.cjs'],
+    ignores: ["dist/", "node_modules/", "test.mjs", "test-cjs.cjs"],
   },
 ];

src/calendars/FcnaCalendar.ts

@@ -1,5 +1,5 @@
-import { getCalendar } from 'hijri-core';
+import { getCalendar } from "hijri-core";
-import { HijriCalendar } from './HijriCalendar';
+import { HijriCalendar } from "./HijriCalendar";
 
 /**
  * Temporal calendar implementation for the FCNA/ISNA calendar.
@@ -17,6 +17,6 @@ import { HijriCalendar } from './HijriCalendar';
  */
 export class FcnaCalendar extends HijriCalendar {
   constructor() {
-    super(getCalendar('fcna'));
+    super(getCalendar("fcna"));
   }
 }

src/calendars/HijriCalendar.ts

@@ -1,7 +1,7 @@
-import { Temporal } from '@js-temporal/polyfill';
+import { Temporal } from "@js-temporal/polyfill";
-import type { CalendarEngine } from 'hijri-core';
+import type { CalendarEngine } from "hijri-core";
 
-type DateUnit = 'year' | 'years' | 'month' | 'months' | 'week' | 'weeks' | 'day' | 'days';
+type DateUnit = "year" | "years" | "month" | "months" | "week" | "weeks" | "day" | "days";
 
 /** Reference year for monthDay construction when no year is specified. */
 const REFERENCE_YEAR = 1444;
@@ -109,8 +109,8 @@ export class HijriCalendar {
    * Resolve the overflow option from a Temporal options bag.
    * Returns 'constrain' (the default) or 'reject'.
    */
-  private resolveOverflow(options?: { overflow?: 'constrain' | 'reject' }): 'constrain' | 'reject' {
+  private resolveOverflow(options?: { overflow?: "constrain" | "reject" }): "constrain" | "reject" {
-    return options?.overflow ?? 'constrain';
+    return options?.overflow ?? "constrain";
   }
 
   /**
@@ -120,9 +120,9 @@ export class HijriCalendar {
     day: number,
     maxDay: number,
     month: number,
-    overflow: 'constrain' | 'reject',
+    overflow: "constrain" | "reject",
   ): number {
-    if (overflow === 'reject' && day > maxDay) {
+    if (overflow === "reject" && day > maxDay) {
       throw new RangeError(`Day ${day} exceeds ${maxDay} days in month ${month}`);
     }
     return Math.min(day, maxDay);
@@ -157,7 +157,7 @@ export class HijriCalendar {
    */
   monthCode(date: Temporal.PlainDate): string {
     const { hm } = this.toHijri(date);
-    return `M${String(hm).padStart(2, '0')}`;
+    return `M${String(hm).padStart(2, "0")}`;
   }
 
   /**
@@ -278,7 +278,7 @@ export class HijriCalendar {
 
   dateFromFields(
     fields: { year: number; month: number; day: number },
-    options?: { overflow?: 'constrain' | 'reject' },
+    options?: { overflow?: "constrain" | "reject" },
   ): Temporal.PlainDate {
     const overflow = this.resolveOverflow(options);
     const maxDay = this.engine.daysInMonth(fields.year, fields.month);
@@ -293,12 +293,12 @@ export class HijriCalendar {
    */
   yearMonthFromFields(
     fields: { year: number; month: number },
-    options?: { overflow?: 'constrain' | 'reject' },
+    options?: { overflow?: "constrain" | "reject" },
   ): Temporal.PlainYearMonth {
     const overflow = this.resolveOverflow(options);
     // Clamp month to 1-12 or reject.
     const maxMonth = 12;
-    if (overflow === 'reject' && (fields.month < 1 || fields.month > maxMonth)) {
+    if (overflow === "reject" && (fields.month < 1 || fields.month > maxMonth)) {
       throw new RangeError(`Month ${fields.month} is out of range 1-${maxMonth}`);
     }
     const month = Math.max(1, Math.min(fields.month, maxMonth));
@@ -316,7 +316,7 @@ export class HijriCalendar {
    */
   monthDayFromFields(
     fields: { month: number; day: number; year?: number },
-    options?: { overflow?: 'constrain' | 'reject' },
+    options?: { overflow?: "constrain" | "reject" },
   ): Temporal.PlainMonthDay {
     const overflow = this.resolveOverflow(options);
     const year = fields.year ?? REFERENCE_YEAR;
@@ -346,7 +346,7 @@ export class HijriCalendar {
   dateAdd(
     date: Temporal.PlainDate,
     duration: Temporal.Duration,
-    _options?: { overflow?: 'constrain' | 'reject' },
+    _options?: { overflow?: "constrain" | "reject" },
   ): Temporal.PlainDate {
     const { hy, hm, hd } = this.toHijri(date);
 
@@ -386,16 +386,16 @@ export class HijriCalendar {
     two: Temporal.PlainDate,
     options?: { largestUnit?: DateUnit },
   ): Temporal.Duration {
-    const largestUnit: DateUnit = options?.largestUnit ?? 'days';
+    const largestUnit: DateUnit = options?.largestUnit ?? "days";
 
-    if (largestUnit === 'years' || largestUnit === 'year') {
+    if (largestUnit === "years" || largestUnit === "year") {
       const h1 = this.toHijri(one);
       const h2 = this.toHijri(two);
       const diff = borrowHijriDiff(this.engine, h2.hy - h1.hy, h2.hm - h1.hm, h2.hd - h1.hd, h2);
       return new Temporal.Duration(diff.years, diff.months, 0, diff.days);
     }
 
-    if (largestUnit === 'months' || largestUnit === 'month') {
+    if (largestUnit === "months" || largestUnit === "month") {
       const h1 = this.toHijri(one);
       const h2 = this.toHijri(two);
       const diff = borrowHijriDiff(this.engine, h2.hy - h1.hy, h2.hm - h1.hm, h2.hd - h1.hd, h2);
@@ -404,11 +404,11 @@ export class HijriCalendar {
     }
 
     // For weeks and days, delegate to ISO arithmetic which is exact.
-    if (largestUnit === 'weeks' || largestUnit === 'week') {
+    if (largestUnit === "weeks" || largestUnit === "week") {
-      return one.until(two, { largestUnit: 'weeks' });
+      return one.until(two, { largestUnit: "weeks" });
     }
 
-    return one.until(two, { largestUnit: 'days' });
+    return one.until(two, { largestUnit: "days" });
   }
 
   mergeFields(

src/calendars/UaqCalendar.ts

@@ -1,5 +1,5 @@
-import { getCalendar } from 'hijri-core';
+import { getCalendar } from "hijri-core";
-import { HijriCalendar } from './HijriCalendar';
+import { HijriCalendar } from "./HijriCalendar";
 
 /**
  * Temporal calendar implementation for the Umm al-Qura calendar.
@@ -15,6 +15,6 @@ import { HijriCalendar } from './HijriCalendar';
  */
 export class UaqCalendar extends HijriCalendar {
   constructor() {
-    super(getCalendar('uaq'));
+    super(getCalendar("uaq"));
   }
 }

src/index.ts

@@ -1,12 +1,12 @@
-export { HijriCalendar } from './calendars/HijriCalendar';
+export { HijriCalendar } from "./calendars/HijriCalendar";
-export { UaqCalendar } from './calendars/UaqCalendar';
+export { UaqCalendar } from "./calendars/UaqCalendar";
-export { FcnaCalendar } from './calendars/FcnaCalendar';
+export { FcnaCalendar } from "./calendars/FcnaCalendar";
 
-export type { HijriDate, CalendarEngine, ConversionOptions } from 'hijri-core';
+export type { HijriDate, CalendarEngine, ConversionOptions } from "hijri-core";
 
 // Pre-built singletons. Import and use directly; no need to instantiate.
-import { UaqCalendar } from './calendars/UaqCalendar';
+import { UaqCalendar } from "./calendars/UaqCalendar";
-import { FcnaCalendar } from './calendars/FcnaCalendar';
+import { FcnaCalendar } from "./calendars/FcnaCalendar";
 
 export const uaqCalendar = new UaqCalendar();
 export const fcnaCalendar = new FcnaCalendar();

src/types.ts

@@ -1 +1 @@
-export type { HijriDate, CalendarEngine, ConversionOptions } from 'hijri-core';
+export type { HijriDate, CalendarEngine, ConversionOptions } from "hijri-core";

test-cjs.cjs

@@ -1,4 +1,4 @@
-'use strict';
+"use strict";
 
 /**
  * CJS test suite for temporal-hijri.
@@ -6,66 +6,66 @@
  * Verifies that the CommonJS build loads and functions correctly via require().
  */
 
-const { describe, it } = require('node:test');
+const { describe, it } = require("node:test");
-const assert = require('node:assert/strict');
+const assert = require("node:assert/strict");
-const { Temporal } = require('@js-temporal/polyfill');
+const { Temporal } = require("@js-temporal/polyfill");
-const { UaqCalendar, FcnaCalendar, uaqCalendar, fcnaCalendar } = require('./dist/index.cjs');
+const { UaqCalendar, FcnaCalendar, uaqCalendar, fcnaCalendar } = require("./dist/index.cjs");
 
-const isoRamadan = Temporal.PlainDate.from('2023-03-23');
+const isoRamadan = Temporal.PlainDate.from("2023-03-23");
 
 // ── Class and singleton exports ───────────────────────────────────────────────
 
-describe('CJS class exports', () => {
+describe("CJS class exports", () => {
-  it('UaqCalendar class loads via require', () => {
+  it("UaqCalendar class loads via require", () => {
-    assert(typeof UaqCalendar === 'function', 'UaqCalendar should be a constructor');
+    assert(typeof UaqCalendar === "function", "UaqCalendar should be a constructor");
     const cal = new UaqCalendar();
-    assert.equal(cal.id, 'hijri-uaq');
+    assert.equal(cal.id, "hijri-uaq");
   });
 
-  it('FcnaCalendar class loads via require', () => {
+  it("FcnaCalendar class loads via require", () => {
-    assert(typeof FcnaCalendar === 'function', 'FcnaCalendar should be a constructor');
+    assert(typeof FcnaCalendar === "function", "FcnaCalendar should be a constructor");
     const cal = new FcnaCalendar();
-    assert.equal(cal.id, 'hijri-fcna');
+    assert.equal(cal.id, "hijri-fcna");
   });
 
-  it('uaqCalendar singleton id', () => {
+  it("uaqCalendar singleton id", () => {
-    assert.equal(uaqCalendar.id, 'hijri-uaq');
+    assert.equal(uaqCalendar.id, "hijri-uaq");
   });
 
-  it('fcnaCalendar singleton id', () => {
+  it("fcnaCalendar singleton id", () => {
-    assert.equal(fcnaCalendar.id, 'hijri-fcna');
+    assert.equal(fcnaCalendar.id, "hijri-fcna");
   });
 });
 
 // ── Field accessors ───────────────────────────────────────────────────────────
 
-describe('CJS field accessors', () => {
+describe("CJS field accessors", () => {
-  it('uaqCalendar.year(2023-03-23) = 1444', () => {
+  it("uaqCalendar.year(2023-03-23) = 1444", () => {
     assert.equal(uaqCalendar.year(isoRamadan), 1444);
   });
 
-  it('uaqCalendar.month(2023-03-23) = 9', () => {
+  it("uaqCalendar.month(2023-03-23) = 9", () => {
     assert.equal(uaqCalendar.month(isoRamadan), 9);
   });
 
-  it('uaqCalendar.day(2023-03-23) = 1', () => {
+  it("uaqCalendar.day(2023-03-23) = 1", () => {
     assert.equal(uaqCalendar.day(isoRamadan), 1);
   });
 });
 
 // ── dateFromFields ─────────────────────────────────────────────────────────────
 
-describe('CJS dateFromFields', () => {
+describe("CJS dateFromFields", () => {
-  it('uaqCalendar.dateFromFields({year:1444, month:9, day:1}) = 2023-03-23', () => {
+  it("uaqCalendar.dateFromFields({year:1444, month:9, day:1}) = 2023-03-23", () => {
     const result = uaqCalendar.dateFromFields({ year: 1444, month: 9, day: 1 });
-    assert.equal(result.toString(), '2023-03-23');
+    assert.equal(result.toString(), "2023-03-23");
   });
 });
 
 // ── fields() ──────────────────────────────────────────────────────────────────
 
-describe('CJS fields()', () => {
+describe("CJS fields()", () => {
-  it('returns the input array unchanged', () => {
+  it("returns the input array unchanged", () => {
-    assert.deepEqual(uaqCalendar.fields(['year', 'month', 'day']), ['year', 'month', 'day']);
+    assert.deepEqual(uaqCalendar.fields(["year", "month", "day"]), ["year", "month", "day"]);
   });
 });

test.mjs

@@ -5,127 +5,127 @@
  * Reference point: 2023-03-23 = 1 Ramadan 1444 AH (both UAQ and FCNA agree).
  */
 
-import { describe, it } from 'node:test';
+import { describe, it } from "node:test";
-import assert from 'node:assert/strict';
+import assert from "node:assert/strict";
-import { Temporal } from '@js-temporal/polyfill';
+import { Temporal } from "@js-temporal/polyfill";
-import { UaqCalendar, FcnaCalendar, uaqCalendar, fcnaCalendar } from './dist/index.mjs';
+import { UaqCalendar, FcnaCalendar, uaqCalendar, fcnaCalendar } from "./dist/index.mjs";
 
 // Reference date: 2023-03-23 = 1 Ramadan 1444 AH
-const isoRamadan = Temporal.PlainDate.from('2023-03-23');
+const isoRamadan = Temporal.PlainDate.from("2023-03-23");
 // 2023-04-21 = 1 Shawwal 1444 AH (first day after Ramadan)
-const isoShawwal = Temporal.PlainDate.from('2023-04-21');
+const isoShawwal = Temporal.PlainDate.from("2023-04-21");
 // 2021-08-09 = 1 Muharram 1443 AH (a 355-day / leap year)
-const isoLeapYear = Temporal.PlainDate.from('2021-08-09');
+const isoLeapYear = Temporal.PlainDate.from("2021-08-09");
 
 // ── 1. Class exports ──────────────────────────────────────────────────────────
 
-describe('Class exports', () => {
+describe("Class exports", () => {
-  it('UaqCalendar class export', () => {
+  it("UaqCalendar class export", () => {
-    assert(UaqCalendar, 'UaqCalendar should be exported');
+    assert(UaqCalendar, "UaqCalendar should be exported");
     const cal = new UaqCalendar();
-    assert(cal instanceof UaqCalendar, 'UaqCalendar should be instantiable');
+    assert(cal instanceof UaqCalendar, "UaqCalendar should be instantiable");
   });
 
-  it('FcnaCalendar class export', () => {
+  it("FcnaCalendar class export", () => {
-    assert(FcnaCalendar, 'FcnaCalendar should be exported');
+    assert(FcnaCalendar, "FcnaCalendar should be exported");
     const cal = new FcnaCalendar();
-    assert(cal instanceof FcnaCalendar, 'FcnaCalendar should be instantiable');
+    assert(cal instanceof FcnaCalendar, "FcnaCalendar should be instantiable");
   });
 });
 
 // ── 2. Calendar IDs ───────────────────────────────────────────────────────────
 
-describe('Calendar IDs', () => {
+describe("Calendar IDs", () => {
-  it('uaqCalendar.id', () => {
+  it("uaqCalendar.id", () => {
-    assert.equal(uaqCalendar.id, 'hijri-uaq');
+    assert.equal(uaqCalendar.id, "hijri-uaq");
   });
 
-  it('fcnaCalendar.id', () => {
+  it("fcnaCalendar.id", () => {
-    assert.equal(fcnaCalendar.id, 'hijri-fcna');
+    assert.equal(fcnaCalendar.id, "hijri-fcna");
   });
 });
 
 // ── 3. Field accessors on 1 Ramadan 1444 (2023-03-23) ────────────────────────
 
-describe('Field accessors (UAQ, 1 Ramadan 1444)', () => {
+describe("Field accessors (UAQ, 1 Ramadan 1444)", () => {
-  it('year = 1444', () => {
+  it("year = 1444", () => {
     assert.equal(uaqCalendar.year(isoRamadan), 1444);
   });
 
-  it('month = 9 (Ramadan)', () => {
+  it("month = 9 (Ramadan)", () => {
     assert.equal(uaqCalendar.month(isoRamadan), 9);
   });
 
-  it('day = 1', () => {
+  it("day = 1", () => {
     assert.equal(uaqCalendar.day(isoRamadan), 1);
   });
 
   it('monthCode = "M09"', () => {
-    assert.equal(uaqCalendar.monthCode(isoRamadan), 'M09');
+    assert.equal(uaqCalendar.monthCode(isoRamadan), "M09");
   });
 
-  it('daysInMonth = 29 (Ramadan 1444)', () => {
+  it("daysInMonth = 29 (Ramadan 1444)", () => {
     assert.equal(uaqCalendar.daysInMonth(isoRamadan), 29);
   });
 
-  it('monthsInYear = 12', () => {
+  it("monthsInYear = 12", () => {
     assert.equal(uaqCalendar.monthsInYear(isoRamadan), 12);
   });
 
-  it('daysInWeek = 7', () => {
+  it("daysInWeek = 7", () => {
     assert.equal(uaqCalendar.daysInWeek(isoRamadan), 7);
   });
 
-  it('dayOfWeek = 4 (Thursday)', () => {
+  it("dayOfWeek = 4 (Thursday)", () => {
     assert.equal(uaqCalendar.dayOfWeek(isoRamadan), 4);
   });
 
-  it('dayOfYear = 237', () => {
+  it("dayOfYear = 237", () => {
     assert.equal(uaqCalendar.dayOfYear(isoRamadan), 237);
   });
 });
 
 // ── 4. dateFromFields ─────────────────────────────────────────────────────────
 
-describe('dateFromFields', () => {
+describe("dateFromFields", () => {
-  it('dateFromFields({year:1444, month:9, day:1}) = 2023-03-23', () => {
+  it("dateFromFields({year:1444, month:9, day:1}) = 2023-03-23", () => {
     const result = uaqCalendar.dateFromFields({ year: 1444, month: 9, day: 1 });
-    assert.equal(result.toString(), '2023-03-23');
+    assert.equal(result.toString(), "2023-03-23");
   });
 });
 
 // ── 5. dateAdd ────────────────────────────────────────────────────────────────
 
-describe('dateAdd', () => {
+describe("dateAdd", () => {
-  it('adding 1 month from 1 Ramadan 1444 lands on 1 Shawwal 1444', () => {
+  it("adding 1 month from 1 Ramadan 1444 lands on 1 Shawwal 1444", () => {
     const oneMonth = new Temporal.Duration(0, 1, 0, 0);
     const result = uaqCalendar.dateAdd(isoRamadan, oneMonth);
     assert.equal(result.toString(), isoShawwal.toString());
     assert.equal(uaqCalendar.month(result), 10);
   });
 
-  it('adding 7 days from 1 Ramadan 1444', () => {
+  it("adding 7 days from 1 Ramadan 1444", () => {
     const sevenDays = new Temporal.Duration(0, 0, 0, 7);
     const result = uaqCalendar.dateAdd(isoRamadan, sevenDays);
     assert.equal(uaqCalendar.day(result), 8);
     assert.equal(uaqCalendar.month(result), 9);
   });
 
-  it('adding 1 week from 1 Ramadan 1444', () => {
+  it("adding 1 week from 1 Ramadan 1444", () => {
     const oneWeek = new Temporal.Duration(0, 0, 1, 0);
     const result = uaqCalendar.dateAdd(isoRamadan, oneWeek);
     assert.equal(uaqCalendar.day(result), 8);
     assert.equal(uaqCalendar.month(result), 9);
   });
 
-  it('adding 12 months rolls the year forward', () => {
+  it("adding 12 months rolls the year forward", () => {
     const twelveMonths = new Temporal.Duration(0, 12, 0, 0);
     const result = uaqCalendar.dateAdd(isoRamadan, twelveMonths);
     assert.equal(uaqCalendar.year(result), 1445);
     assert.equal(uaqCalendar.month(result), 9);
   });
 
-  it('subtracting months via negative duration', () => {
+  it("subtracting months via negative duration", () => {
     const negMonth = new Temporal.Duration(0, -1, 0, 0);
     const result = uaqCalendar.dateAdd(isoShawwal, negMonth);
     assert.equal(uaqCalendar.month(result), 9);
@@ -135,29 +135,29 @@ describe('dateAdd', () => {
 
 // ── 6. dateUntil ──────────────────────────────────────────────────────────────
 
-describe('dateUntil', () => {
+describe("dateUntil", () => {
-  it('days between 1 Ramadan and 1 Shawwal 1444', () => {
+  it("days between 1 Ramadan and 1 Shawwal 1444", () => {
-    const dur = uaqCalendar.dateUntil(isoRamadan, isoShawwal, { largestUnit: 'days' });
+    const dur = uaqCalendar.dateUntil(isoRamadan, isoShawwal, { largestUnit: "days" });
     assert.equal(dur.days, 29);
   });
 
-  it('months between 1 Ramadan and 1 Shawwal 1444', () => {
+  it("months between 1 Ramadan and 1 Shawwal 1444", () => {
-    const dur = uaqCalendar.dateUntil(isoRamadan, isoShawwal, { largestUnit: 'months' });
+    const dur = uaqCalendar.dateUntil(isoRamadan, isoShawwal, { largestUnit: "months" });
     assert.equal(dur.months, 1);
     assert.equal(dur.days, 0);
   });
 
-  it('years between dates spanning one Hijri year', () => {
+  it("years between dates spanning one Hijri year", () => {
     const iso1443 = uaqCalendar.dateFromFields({ year: 1443, month: 1, day: 1 });
     const iso1444 = uaqCalendar.dateFromFields({ year: 1444, month: 1, day: 1 });
-    const dur = uaqCalendar.dateUntil(iso1443, iso1444, { largestUnit: 'years' });
+    const dur = uaqCalendar.dateUntil(iso1443, iso1444, { largestUnit: "years" });
     assert.equal(dur.years, 1);
     assert.equal(dur.months, 0);
     assert.equal(dur.days, 0);
   });
 
-  it('weeks between dates', () => {
+  it("weeks between dates", () => {
-    const dur = uaqCalendar.dateUntil(isoRamadan, isoShawwal, { largestUnit: 'weeks' });
+    const dur = uaqCalendar.dateUntil(isoRamadan, isoShawwal, { largestUnit: "weeks" });
     assert.equal(dur.weeks, 4);
     assert.equal(dur.days, 1);
   });
@@ -165,8 +165,8 @@ describe('dateUntil', () => {
 
 // ── 7. inLeapYear ─────────────────────────────────────────────────────────────
 
-describe('inLeapYear', () => {
+describe("inLeapYear", () => {
-  it('1443 AH (355 days) is a leap year, 1444 AH (354) is not', () => {
+  it("1443 AH (355 days) is a leap year, 1444 AH (354) is not", () => {
     assert.equal(uaqCalendar.inLeapYear(isoLeapYear), true);
     assert.equal(uaqCalendar.inLeapYear(isoRamadan), false);
   });
@@ -174,18 +174,18 @@ describe('inLeapYear', () => {
 
 // ── 8. FCNA calendar ──────────────────────────────────────────────────────────
 
-describe('FCNA calendar', () => {
+describe("FCNA calendar", () => {
-  it('fcnaCalendar.year(2023-03-23) returns a valid Hijri year', () => {
+  it("fcnaCalendar.year(2023-03-23) returns a valid Hijri year", () => {
     const year = fcnaCalendar.year(isoRamadan);
-    assert(typeof year === 'number' && year > 1400, `Expected a Hijri year > 1400, got ${year}`);
+    assert(typeof year === "number" && year > 1400, `Expected a Hijri year > 1400, got ${year}`);
   });
 });
 
 // ── 9. Out-of-range error ─────────────────────────────────────────────────────
 
-describe('Out-of-range error', () => {
+describe("Out-of-range error", () => {
-  it('uaqCalendar.year throws RangeError for out-of-range date (1800-01-01)', () => {
+  it("uaqCalendar.year throws RangeError for out-of-range date (1800-01-01)", () => {
-    const outOfRange = Temporal.PlainDate.from('1800-01-01');
+    const outOfRange = Temporal.PlainDate.from("1800-01-01");
     assert.throws(
       () => uaqCalendar.year(outOfRange),
       (err) => err instanceof RangeError,
@@ -195,11 +195,11 @@ describe('Out-of-range error', () => {
 
 // ── 10. overflow option ───────────────────────────────────────────────────────
 
-describe('overflow option', () => {
+describe("overflow option", () => {
   it('dateFromFields with overflow: "constrain" clamps day', () => {
     const result = uaqCalendar.dateFromFields(
       { year: 1444, month: 9, day: 31 },
-      { overflow: 'constrain' },
+      { overflow: "constrain" },
     );
     assert.equal(uaqCalendar.day(result), 29);
     assert.equal(uaqCalendar.month(result), 9);
@@ -207,19 +207,19 @@ describe('overflow option', () => {
 
   it('dateFromFields with overflow: "reject" throws RangeError', () => {
     assert.throws(
-      () => uaqCalendar.dateFromFields({ year: 1444, month: 9, day: 31 }, { overflow: 'reject' }),
+      () => uaqCalendar.dateFromFields({ year: 1444, month: 9, day: 31 }, { overflow: "reject" }),
       (err) => err instanceof RangeError,
     );
   });
 
   it('monthDayFromFields with overflow: "constrain" clamps day', () => {
-    const result = uaqCalendar.monthDayFromFields({ month: 9, day: 31 }, { overflow: 'constrain' });
+    const result = uaqCalendar.monthDayFromFields({ month: 9, day: 31 }, { overflow: "constrain" });
     assert.ok(result);
   });
 
   it('monthDayFromFields with overflow: "reject" throws RangeError', () => {
     assert.throws(
-      () => uaqCalendar.monthDayFromFields({ month: 9, day: 31 }, { overflow: 'reject' }),
+      () => uaqCalendar.monthDayFromFields({ month: 9, day: 31 }, { overflow: "reject" }),
       (err) => err instanceof RangeError,
     );
   });
@@ -227,22 +227,22 @@ describe('overflow option', () => {
 
 // ── 11. fields() ──────────────────────────────────────────────────────────────
 
-describe('fields()', () => {
+describe("fields()", () => {
-  it('returns the input array unchanged', () => {
+  it("returns the input array unchanged", () => {
-    const input = ['year', 'month', 'day'];
+    const input = ["year", "month", "day"];
     const result = uaqCalendar.fields(input);
-    assert.deepEqual(result, ['year', 'month', 'day']);
+    assert.deepEqual(result, ["year", "month", "day"]);
   });
 
-  it('returns an empty array for empty input', () => {
+  it("returns an empty array for empty input", () => {
     assert.deepEqual(uaqCalendar.fields([]), []);
   });
 });
 
 // ── 12. yearMonthFromFields ─────────────────────────────────────────────────
 
-describe('yearMonthFromFields', () => {
+describe("yearMonthFromFields", () => {
-  it('creates a PlainYearMonth for Ramadan 1444', () => {
+  it("creates a PlainYearMonth for Ramadan 1444", () => {
     const result = uaqCalendar.yearMonthFromFields({ year: 1444, month: 9 });
     assert.ok(result);
     assert.equal(result.month, 3);
@@ -252,13 +252,13 @@ describe('yearMonthFromFields', () => {
 
 // ── 13. monthDayFromFields ──────────────────────────────────────────────────
 
-describe('monthDayFromFields', () => {
+describe("monthDayFromFields", () => {
-  it('creates a PlainMonthDay for 15 Ramadan (default reference year)', () => {
+  it("creates a PlainMonthDay for 15 Ramadan (default reference year)", () => {
     const result = uaqCalendar.monthDayFromFields({ month: 9, day: 15 });
     assert.ok(result);
   });
 
-  it('creates a PlainMonthDay with explicit year', () => {
+  it("creates a PlainMonthDay with explicit year", () => {
     const result = uaqCalendar.monthDayFromFields({ month: 9, day: 1, year: 1445 });
     assert.ok(result);
   });

tsup.config.ts

@@ -1,17 +1,17 @@
-import { defineConfig } from 'tsup';
+import { defineConfig } from "tsup";
 
 export default defineConfig({
-  entry: ['src/index.ts'],
+  entry: ["src/index.ts"],
-  format: ['cjs', 'esm'],
+  format: ["cjs", "esm"],
   dts: true,
   clean: true,
-  outDir: 'dist',
+  outDir: "dist",
   splitting: false,
   sourcemap: true,
-  target: 'es2020',
+  target: "es2020",
-  platform: 'node',
+  platform: "node",
-  external: ['hijri-core', '@js-temporal/polyfill'],
+  external: ["hijri-core", "@js-temporal/polyfill"],
   outExtension({ format }) {
-    return { js: format === 'esm' ? '.mjs' : '.cjs' };
+    return { js: format === "esm" ? ".mjs" : ".cjs" };
   },
 });