2개이하로다른비트.js

function solution(numbers) {
    let answer = [];
      
    for (let i = 0; i < numbers.length; i++) {
      let current = numbers[i];
      if (current % 2 === 0) {
        answer.push(current + 1); 
      } else {
        current = "0" + current.toString(2);
          
        let totalLength = current.length;
          
        for (let j = totalLength - 1; j >= 0; j--) {
          if (+current[j] === 0) {
            answer.push(
              parseInt(
                current.substring(0, j) +
                  "10" +
                  current.substring(j + 2, totalLength),
                2
              ) 
            );
            break;
          }
        }
          
      }
        
    }
    return answer;
  }