refactor: Extract zero

Author: takker99

howm/localDate.ts

@@ -1,3 +1,5 @@
+import { zero } from "../zero.ts";
+
 export interface LocalDate {
   year: number;
   month: number;
@@ -33,8 +35,6 @@ export const format = (date: LocalDate | LocalDateTime): string =>
     "hours" in date ? `T${zero(date.hours)}:${zero(date.minutes)}` : ""
   }`;
 
-const zero = (n: number): string => `${n}`.padStart(2, "0");
-
 export const toDate = (date: LocalDate | LocalDateTime): Date => {
   const str = format(date);
   return new Date(str.includes("T") ? str : `${str}T00:00`);

workflow/EventItem.tsx

@@ -10,6 +10,7 @@ import { Event, getEventStatus, isLink } from "./event.ts";
 import { getEnd } from "../howm/Period.ts";
 import type { Scrapbox } from "../deps/scrapbox-std-dom.ts";
 import { makeLink } from "./path.ts";
+import { zero } from "../zero.ts";
 declare const scrapbox: Scrapbox;
 
 export const EventItem: FunctionComponent<
@@ -62,5 +63,3 @@ export const EventItem: FunctionComponent<
     </li>
   );
 };
-
-const zero = (n: number): string => `${n}`.padStart(2, "0");

workflow/key.ts

@@ -5,6 +5,7 @@ import {
   startOfWeek,
 } from "../deps/date-fns.ts";
 import { LocalDate } from "../howm/localDate.ts";
+import { zero } from "../zero.ts";
 
 export type Key = `${number}-${string}-${string}`;
 export type WeekKey = `${number}-w${string}`;
@@ -24,5 +25,3 @@ export const toStartOfWeek = (key: WeekKey): Date => {
   const [year, week] = key.split("-w").map((s) => parseInt(s, 10));
   return startOfWeek(setWeek(new Date(year, 0, 1), week));
 };
-
-const zero = (n: number) => `${n}`.padStart(2, "0");

zero.ts

@@ -0,0 +1 @@
+export const zero = (n: number) => `${n}`.padStart(2, "0");