[Typescript] dayOfYear definition

[Toub]

Describe the bug

Typescript provides only one dayOfYear method without arg:

declare module 'dayjs' {
  interface Dayjs {
    dayOfYear(): number
  }
}

https://github.com/iamkun/dayjs/blob/v1.8.20/types/plugin/dayOfYear.d.ts

Expected behavior

A second method is described in the documentation, it should be available in types too: https://github.com/iamkun/dayjs/blob/v1.8.20/docs/en/Plugin.md

// first method:  dayOfYear(): number
dayjs('2010-01-01').dayOfYear() // 1

// second method:  dayOfYear(year: number): Date
dayjs('2010-01-01').dayOfYear(365) // 2010-12-31

Not sure what is the best way to describe it with types, but this should help:

• https://stackoverflow.com/questions/12688275/is-there-a-way-to-do-method-overloading-in-typescript/12689054#12689054

Information

• Day.js Version v1.8.20
• OS: any
• Browser any
• Time zone: any

[iamkun]

Thanks.

Fixed in #799.

And will release soon.