fix(): Add missing locale type definition (#716)

.gitignore

@@ -15,9 +15,9 @@ coverage
 # build
 /locale
 /plugin
-dayjs.min.js
+/dayjs.min.js
 /esm
-index.d.ts
+/index.d.ts
 
 #dev
 demo.js

types/index.d.ts

@@ -1,3 +1,5 @@
+/// <reference path="./locale/index.d.ts" />
+
 export = dayjs;
 declare function dayjs (date?: dayjs.ConfigType, option?: dayjs.OptionType, locale?: string): dayjs.Dayjs
 
@@ -91,18 +93,18 @@ declare namespace dayjs {
 
     locale(): string
 
-    locale(preset: string | { name: string, [key: string]: any }, object?: { [key: string]: any }): Dayjs
+    locale(preset: string | ILocale, object?: Partial<ILocale>): Dayjs
   }
 
   export type PluginFunc = (option: any, c: typeof Dayjs, d: typeof dayjs) => void
 
   export function extend(plugin: PluginFunc, option?: any): Dayjs
 
-  export function locale(preset: string | { name: string, [key: string]: any }, object?: { [key: string]: any }, isLocal?: boolean): string
+  export function locale(preset: string | ILocale, object?: Partial<ILocale>, isLocal?: boolean): string
 
   export function isDayjs(d: any): d is Dayjs
 
   export function unix(t: number): Dayjs
 
-  const Ls : { [key: string] :  { [key: string]: any } }
+  const Ls : { [key: string] :  ILocale }
 }

types/locale/index.d.ts

@@ -0,0 +1,11 @@
+/// <reference path="./types.d.ts" />
+
+declare module 'dayjs/locale/*' {
+  namespace locale {
+    interface Locale extends ILocale {}
+  }
+
+  const locale: locale.Locale
+
+  export = locale
+}

types/locale/types.d.ts

@@ -0,0 +1,33 @@
+declare interface ILocale {
+  name: string
+  weekdays?: string[]
+  months?: string[]
+  weekStart?: number
+  weekdaysShort?: string[]
+  monthsShort?: string[]
+  weekdaysMin?: string[]
+  ordinal?: (n: number) => number | string
+  formats: Partial<{
+    LT: string
+    LTS: string
+    L: string
+    LL: string
+    LLL: string
+    LLLL: string
+  }>
+  relativeTime: Partial<{
+    future: string
+    past: string
+    s: string
+    m: string
+    mm: string
+    h: string
+    hh: string
+    d: string
+    dd: string
+    M: string
+    MM: string
+    y: string
+    yy: string
+  }>
+}