Is it possible to support typescript?

[feilongproject]

[lamweili]

Would you mind submitting a PR for this? I'm rather tied up at the moment.

I would think adding a date-format.d.ts and making sure it's in package.json will do the trick. Yet I don't have the time to test it out.

types/date-format.d.ts

declare module "date-format" 

package.json

{
  "types": "./types/date-format.d.ts", 
}