[Coding Test]크기가 작은 부분문자열

function solution(t, p) {

  const result = [];

  for (var i = 0; i < t.length; i++) {
    sliceWord = t.slice(i, i+p.length)
    if(sliceWord.length === p.length){
      result.push(sliceWord)
    }
  }

  answer = result.filter((num) => Number(num) <= Number(p))

  return answer.length;
}

console.log(solution("500220839878",	"7"))