/*
 * @lc app=leetcode.cn id=165 lang=javascript
 *
 * [165] 比较版本号
 */

// @lc code=start
/**
 * @param {string} version1
 * @param {string} version2
 * @return {number}
 */
var compareVersion = function (version1, version2) {
  const v1 = version1.split('.')
  const v2 = version2.split('.')
  const maxLen = Math.max(v1.length, v2.length)
  for (let i = 0; i < maxLen; i++) {
    const n1 = Number(v1[i] || 0)
    const n2 = Number(v2[i] || 0)
    if (n1 > n2) {
      return 1;
    }
    if (n1 < n2) {
      return -1;
    }
  }
  return 0;
};
// @lc code=end

console.log(compareVersion('1.01', '1.001'))