Date detect range

Prints a human readable version of an array of dates.

Rules

• two dates print with an "and" inbetween
  • ["2000-05-15", "2000-05-16"] → 2000-05-15 and 2000-05-16
  • ["2000-05-15", "2000-05-17"] → 2000-05-15 and 2000-05-17
• more than two dates in a row print with a "to" inbetween
  • ["2000-05-15", "2000-05-16", "2000-05-17"] → 2000-05-15 to 2000-05-17
  • ["2000-05-15", "2000-05-16", "2000-05-17", "2000-05-20"] → 2000-05-15 to 2000-05-17, 2000-05-20
• if there are not more than two dates in a row output is the output (ordered)
  • ["2000-05-15", "2000-05-16", "2000-05-18", "2000-05-20"] → 2000-05-15, 2000-05-16, 2000-05-18, 2000-05-20

Usage

import  DetectRange from 'date-detect-range'
import 'moment/locale/de'; // localise to german

let dates = ["2000-05-15", "2000-05-16", "2000-05-17"];

let range = new DetectRange(dates).format({
    and: " und ",
    to: " bis ",
    format: "dd D. MMMM",
});

console.log(range); // → Sa 15. Mai bis Mo 17. Mai,