Print a list of weeks of the year starting on Jan 1

list-weeks-of-year.js

const moment = require("moment"),
      _ = require("lodash");

function getWeeksOfYearList(startDate, endDate) {
  let dates = [],
      keepGoing = true,
      start = moment(startDate),
      end = moment(endDate),
      rolling = start;

  while(keepGoing) {
    dates.push(rolling.format("DD MMM YYYY"));
    rolling = rolling.add(7, "days");    
    dates.push(rolling.format("DD MMM YYYY"));

    if(rolling > end) {
      keepGoing = false;
    } 
  }

  return _.chunk(dates, 2);
}

_.forEach(getWeeksOfYearList("20160101", "20161231"), (w) => {
  console.log(`start: ${w[0]} | end: ${w[1]}`);
});