【算法题】比较两个版本号的大小（js)

const lines = ["5.2", "5.1a"];
const lines1 = ["5.6.1", "5.6.2a"];
const lines2 = ["5.6.8.a", "5.6.8.0a"];
const lines3 = ["5.06.08.a", "5.6.8.0a"];
const lines4 = ["5", "5.0.0.0"];
function solution(lines) {
  const [verson1, version2] = lines;
  if (!isValid(verson1) || !isValid(version2)) return 0;
  const str1 = verson1.replace(/[\.0]/g, "");
  const str2 = version2.replace(/[\.0]/g, "");
  return parseInt(str1) !== parseInt(str2)
    ? parseInt(str1) > parseInt(str2)
      ? 1
      : -1
    : 0;
  console.log(str1, str2);
  function isValid(ver) {
    if (/[^0-9a-zA-Z.]/.test(ver)) return false;
    const arr = ver.split(".");
    if (arr.length < 1) return false;
    return true;
  }
}

console.log(solution(lines));
/* 
5.2
5.1a
=> 1

5.6.1
5.6.2a
=>
-1

5.6.8.a
5.6.8.0a
=>
0

const lines3 = ["5.06.08.a", "5.6.8.0a"];  预计 0
const lines4 = ["5", "5.0.0.0"];    预计 0
 */