How to get Input case data in Node.JS

Every website provides a different skeleton code to start with. 

BOJ

const input = require("fs").readFileSync("/dev/stdin").toString('\n');

console.log(input);

Programmers - just focus on the code itself, solution function for the logic

function solution(numbers) {

    var answer = [];

    return answer;

}

Groom 

const readline = require("readline");

const rl = readline.createInterface({

  input: process.stdin,

  output: process.stdout,

});

let data = [];

rl.on("line", function (line) {

  data.push(line);

  //console.log(data);

  data = line.split(" ").map((el) => el);

  console.log(data);

  // data = line.split(' ').map((el) => el);

  // data = line.split('').map((el) => +el);

  rl.close();

}).on("close", function () {

  process.exit();

});

//////////////////////////////////////////////////////////////////////////

const readline = require("readline");

const rl = readline.createInterface({

  input: process.stdin,

  output: process.stdout,

});

let input = [];

rl.on("line", function (line) {

  input.push(line);

}).on("close", function () {

  let num1 = Number(input[0]);

  let num2 = Number(input[1]);

  let hundredSeatsNum2 = Math.floor(num2 / 100);

  let tenSeatsNum2 = Math.floor(num2 / 10) - hundredSeatsNum2 * 10;

  let oneSeatsNum2 = num2 % 10;

  console.log(num1 * oneSeatsNum2);

  console.log(num1 * tenSeatsNum2);

  console.log(num1 * hundredSeatsNum2);

  console.log(num1 * num2);

  process.exit();

});

Leetcode

Hackerrank