compareSemver.js

function compareSemver(ver1, ver2) {
  ver1 = ver1.split('.');
  ver2 = ver2.split('.');
  for (var i = 0; i < 3; i++) {
    var nver1 = parseInt(ver1[i]);
    var nver2 = parseInt(ver2[i]);
    if (nver1 > nver2)
      return 1;
    if (nver1 < nver2)
      return -1;
  }
  return 0;
}