hackerrank-boilerplate.js

function solve(data) {
  // example returns sum of a line of integers seperated by a space
  // return data.split(' ').reduce((acc, cur) => acc += Number(cur), 0);

  return data;
}

process.stdin.resume();
process.stdin.setEncoding('ascii');

let stdin = '';

process.stdin.on('data', function (data) {
  stdin += data;
});

process.stdin.on('end', function () {
  const stdinArr = stdin.split('\n');
  const tests = stdinArr.shift();
  let res;

  for (let i = 0; i < tests; i += 1) {
    res = solve(stdinArr[i]);
    process.stdout.write(res + '\n');
  }
});