Fix leading zero padding for JS dates before common era

Author: mjradwin

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@hebcal/rest-api",
-  "version": "3.4.1",
+  "version": "3.4.2",
   "author": "Michael J. Radwin (https://github.com/mjradwin)",
   "keywords": [
     "hebcal"
@@ -65,7 +65,7 @@
     "eslint-config-google": "^0.14.0",
     "jsdoc": "^3.6.7",
     "jsdoc-to-markdown": "^5.0.3",
-    "rollup": "^2.48.0",
+    "rollup": "^2.49.0",
     "rollup-plugin-terser": "^7.0.2"
   }
 }

src/classic-rest-api.spec.js

@@ -89,7 +89,7 @@ test('bce', (t) => {
   const apiObj = eventToClassicApiObject(ev, options);
   const expected = {
     title: 'Erev Shavuot',
-    date: '-00001-05-06',
+    date: '-000001-05-06',
     category: 'holiday',
     subcat: 'major',
     hebrew: 'ערב שבועות',

src/common.js

@@ -55,7 +55,7 @@ export function pad2(number) {
  */
 export function pad4(number) {
   if (number < 0) {
-    return '-0' + pad4(-number);
+    return '-00' + pad4(-number);
   } else if (number < 10) {
     return '000' + number;
   } else if (number < 100) {

src/fullcalendar.spec.js

@@ -225,7 +225,7 @@ test('bce', (t) => {
   const fc = eventToFullCalendar(ev);
   const expected = {
     title: 'Erev Shavuot',
-    start: '-00001-05-06',
+    start: '-000001-05-06',
     allDay: true,
     className: 'holiday major',
     hebrew: 'ערב שבועות',