Move pad2/pad4 to separate file for tree-shaking

Author: mjradwin

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@hebcal/hdate",
-  "version": "0.11.1",
+  "version": "0.11.2",
   "description": "converts between Hebrew and Gregorian dates using Rata Die (R.D.) algorithm by Dershowitz and Reingold",
   "author": "Michael J. Radwin (https://github.com/mjradwin)",
   "contributors": [
@@ -47,12 +47,12 @@
   },
   "devDependencies": {
     "@types/jest": "^29.5.12",
-    "@types/node": "20.14.9",
+    "@types/node": "20.14.10",
     "gts": "^5.3.1",
     "jest": "^29.7.0",
-    "ts-jest": "^29.1.5",
+    "ts-jest": "^29.2.2",
     "ttag-cli": "^1.10.12",
-    "typedoc": "^0.26.3",
+    "typedoc": "^0.26.4",
     "typescript": "^5.5.3"
   }
 }

package.json

@@ -1,3 +1,5 @@
+import {pad2, pad4} from './pad';
+
 const _formatters = new Map();
 
 /**
@@ -51,36 +53,6 @@ export function getTimezoneOffset(tzid: string, date: Date): number {
   return Math.ceil(diffMs / 1000 / 60);
 }
 
-/**
- * Formats a number with leading zeros so the resulting string is 4 digits long.
- * Similar to `string.padStart(4, '0')` but will also format
- * negative numbers similar to how the JavaScript date formats
- * negative year numbers (e.g. `-37` is formatted as `-000037`).
- */
-export function pad4(num: number): string {
-  if (num < 0) {
-    return '-00' + pad4(-num);
-  } else if (num < 10) {
-    return '000' + num;
-  } else if (num < 100) {
-    return '00' + num;
-  } else if (num < 1000) {
-    return '0' + num;
-  }
-  return String(num);
-}
-
-/**
- * Formats a number with leading zeros so the resulting string is 2 digits long.
- * Similar to `string.padStart(2, '0')`.
- */
-export function pad2(num: number): string {
-  if (num >= 0 && num < 10) {
-    return '0' + num;
-  }
-  return String(num);
-}
-
 /**
  * Returns YYYY-MM-DD in the local timezone
  */

src/dateFormat.ts

@@ -5,6 +5,7 @@ export * from './anniversary';
 export * from './gematriya';
 export * from './omer';
 export * from './molad';
+export * from './pad';
 export * from './dateFormat';
 export * from './locale';
 export {HDate} from './hdate';

src/index.ts

@@ -0,0 +1,29 @@
+/**
+ * Formats a number with leading zeros so the resulting string is 4 digits long.
+ * Similar to `string.padStart(4, '0')` but will also format
+ * negative numbers similar to how the JavaScript date formats
+ * negative year numbers (e.g. `-37` is formatted as `-000037`).
+ */
+export function pad4(num: number): string {
+  if (num < 0) {
+    return '-00' + pad4(-num);
+  } else if (num < 10) {
+    return '000' + num;
+  } else if (num < 100) {
+    return '00' + num;
+  } else if (num < 1000) {
+    return '0' + num;
+  }
+  return String(num);
+}
+
+/**
+ * Formats a number with leading zeros so the resulting string is 2 digits long.
+ * Similar to `string.padStart(2, '0')`.
+ */
+export function pad2(num: number): string {
+  if (num >= 0 && num < 10) {
+    return '0' + num;
+  }
+  return String(num);
+}

src/pad.ts

@@ -1,4 +1,4 @@
-import { getPseudoISO, getTimezoneOffset, pad2, pad4 } from '../src/dateFormat';
+import { getPseudoISO, getTimezoneOffset } from '../src/dateFormat';
 
 test('getPseudoISO-2021', () => {
   const dt = new Date(Date.UTC(2021, 0, 31, 7, 30, 50, 551));
@@ -41,19 +41,3 @@ test('getTimezoneOffset', () => {
   expect(getTimezoneOffset('America/Phoenix', july)).toBe(420);
   expect(getTimezoneOffset('Asia/Jerusalem', july)).toBe(-180);
 });
-
-test('pad2', () => {
-  expect(pad2(0)).toBe('00');
-  expect(pad2(5)).toBe('05');
-  expect(pad2(25)).toBe('25');
-  expect(pad2(-3)).toBe('-3');
-});
-
-test('pad4', () => {
-  expect(pad4(0)).toBe('0000');
-  expect(pad4(5)).toBe('0005');
-  expect(pad4(25)).toBe('0025');
-  expect(pad4(125)).toBe('0125');
-  expect(pad4(2025)).toBe('2025');
-  expect(pad4(-38)).toBe('-000038');
-});

test/dateFormat.spec.ts

@@ -0,0 +1,17 @@
+import { pad2, pad4 } from '../src/pad';
+
+test('pad2', () => {
+  expect(pad2(0)).toBe('00');
+  expect(pad2(5)).toBe('05');
+  expect(pad2(25)).toBe('25');
+  expect(pad2(-3)).toBe('-3');
+});
+
+test('pad4', () => {
+  expect(pad4(0)).toBe('0000');
+  expect(pad4(5)).toBe('0005');
+  expect(pad4(25)).toBe('0025');
+  expect(pad4(125)).toBe('0125');
+  expect(pad4(2025)).toBe('2025');
+  expect(pad4(-38)).toBe('-000038');
+});