[프로그래머스] JS K번째수

https://programmers.co.kr/learn/courses/30/lessons/42748

코딩테스트 연습 - K번째수

이거 때문에 오류남.

const array1 = [1, 30, 4, 21, 100000];
array1.sort();
console.log(array1);
// expected output: Array [1, 100000, 21, 30, 4]

function solution(array, commands) {
  var answer = [];
  for (let i = 0; i < commands.length; i++) {
    answer.push(logic(commands[i], array));
  }

  function logic(command, array) {
    let newArray = [];
    let nInt = 0;

    for (let i = 0; i < array.length; i++) {
      let front = command[0] - 1;
      let end = command[1] - 1;
      if (front <= i && i <= end) {
        newArray.push(array[i]);
      }
    }
    newArray.sort((a, b) => a - b);
    nInt = newArray[command[2] - 1];
    return nInt;
  }

  return answer;
}