Return only sorted large pairs

largeNumber.js

// inputData = 64,120
// 63,121
// 65,100
// 70,150
// 56,90
// 75,190
// 60,95
// 68,110

function writeOutput(inputData) {
  // Start writing code here to consume input, and return result.

  // Remove newline characters from the inputData
  let inputArr = inputData.split("\n");
  let numArr = [];

  // Convert the inputData into an array of numbers for easier comparison
  for (let value of inputArr) {
    let subValueSplits = value.split(",");
    numArr.push([parseInt(subValueSplits[0]), parseInt(subValueSplits[1])]);
  }

  let local = numArr.sort((a, b) => {
    return a[0] - b[0] && a[1] - b[1];
  });

  let oddValues = [];
  local.sort((a, b) => {
    if (a[0] < b[0]) {
      oddValues.push(a);
    }
  });

  let res = [];

  for (let pair of local) {
    if (!oddValues.includes(pair)) {
      res.push(pair);
    }
  }

  return res.map((item) => item.toString() + "\n").join("");
}