Iteration1.js

"use strict";

process.stdin.resume();
process.stdin.setEncoding("utf-8");

let inputString = "";
let currentLine = 0;

process.stdin.on("data", (inputStdin) => {
  inputString += inputStdin;
});

process.stdin.on("end", (_) => {
  inputString = inputString
    .trim()
    .split("\n")
    .map((string) => {
      return string.trim();
    });

  main();
});

function readLine() {
  return inputString[currentLine++];
}

function getDayName(dateString) {
  switch (new Date(dateString).getDay()) {
    case 0:
      return "Sunday";
    case 1:
      return "Monday";
    case 2:
      return "Tuesday";
    case 3:
      return "Wednesday";
    case 4:
      return "Thursday";
    case 5:
      return "Friday";
    default:
      return "Saturday";
  }
}

/*
 * Directly returing the string using switch case in Js.
 * Basic usage of Date instances!
 */

function main() {
  const d = +readLine();

  for (let i = 0; i < d; i++) {
    const date = readLine();

    console.log(getDayName(date));
  }
}