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Jquery version check vs. needed version

/ Published in: jQuery
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Checks if JQuery is loaded and then checks if loaded version of JQuery >= needed version

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  1. function isJQueryValidVersion(version) {
  2.   var validVersion = true;
  3.   if (typeof jQuery != 'undefined') {
  4.     if ((typeof version != 'undefined') && (version != '')) {
  5.       var neededVersion = version.split('.');
  6.       var jQver = jQuery.fn.jquery.split('.');
  7.       for (var i = 0; i < jQver.length; i++) {
  8.         var actset = parseInt(jQver[i]);
  9.         if (neededVersion.length >= (i+1)) {
  10.           var actneeded = parseInt(neededVersion[i]);
  11. 	  if (actneeded > actset) {
  12. 	    validVersion = false;
  13. 	    break;
  14. 	  } else if (actneeded < actset) {
  15. 	    validVersion = true;
  16. 	    break;
  17. 	  } else {
  18. 	    continue;
  19. 	  }
  20.         } else {
  21. 	  if (actset >= 0) {
  22. 	    validVersion = true;
  23. 	    break;
  24. 	  }
  25.         }
  26.       }
  27.     }
  28.   } else {
  29.     validVersion = false;
  30.   }
  31.   return validVersion;
  32. }

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