next-biz-date

next-biz-date

Provides a comprehensive way to find next business day by skipping an array of target (previously sorted) holidays and weekends.

example test:

mkdir nbd-test
cd nbd-test
npm i next-biz date
cd node_modules
cd next-biz-date
npm run test-old

If you have mocha installed (npm i mocha -g) you can also run npm test or simply mocha to execute the unit tests.

You can look at the test.js file there for an example on usage, which consists in creating an array of dates (strings with yyyy-mm-dd format) that then is passed to the FindNextBizDate() function along with a cadidateDate specification.

The basic outline is:

1. Define candidate date
2. Define array of holidays (strings with yyyy-mm-dd format)
3. Call the FindNextBizDate() function passing the candidateDate and the holidaysArray you defined.

const moment = require("moment");
const nbd = require("next-biz-date");

function test() {
  console.log("--------------------------------------------");
  console.log("--------------------------------------------");
  console.log("--------------------------------------------");

  const targetCases = [
    "2020-12-20",
    "2020-12-21",
    "2020-12-22",
    "2020-12-23",
    "2020-12-24",
    "2020-12-25",
    "2020-12-26",
    "2020-12-27",
    "2020-12-28",
    "2020-12-29",
    "2020-12-30",
    "2020-12-31",
    "2021-01-01",
    "2021-01-02",
    "2021-01-03",
    "2021-01-04",
    "2021-01-05"
  ];
  
  const expectedResults = [
    "2020-12-21",
    "2020-12-21",
    "2020-12-22",
    "2020-12-23",
    "2020-12-24",
    "2020-12-29",
    "2020-12-29",
    "2020-12-29",
    "2020-12-29",
    "2020-12-29",
    "2020-12-30",
    "2020-12-31",
    "2021-01-05",
    "2021-01-05",
    "2021-01-05",
    "2021-01-05",
    "2021-01-05"
  ];  

  const holidaysArray = [
    "2020-12-25",
    "2020-12-28",
    "2021-01-01",
    "2021-01-04"
  ];

  console.log("TEST:", {targetCases, holidaysArray});

  let results = [];

  targetCases.forEach((item, i) => {
    let tDate = moment(item);
    let rDate = nbd.FindNextBizDate(tDate, holidaysArray);
    if(rDate.isSame(expectedResults[i])){
      console.log(tDate, rDate, "OK");
    } else {
      console.error("FAIL",tDate, rDate);
    }
    results.push({tDate, rDate});
  });
}
test();