JavaScript Version Script Comparison

isVersionNewer.js

/**
 * if v2 version value bigger than v1, returns true. otherwise returns false.
 * 
 * Version part lengths should be equal.
 * 
 * Examples:
 * isVersionNewer('1', '2'); -> true
 * isVersionNewer('1.0', '2.0'); -> true
 * isVersionNewer('2.0.1', '2.0.0'); -> false
 * isVersionNewer('3.2.1.0', '3.2.1.1'); -> true
 * 
 */
function isVersionNewer(v1, v2){
  v1 = v1.split('.');
  v2 = v2.split('.');

  for(var i = 0; i < v1.length; i++){
    if (+v2[i] > +v1[i]) return true;
    if (+v2[i] < +v1[i]) return false;
  }

  return false;
}