Checks whether a selector in the document content

jquery.hasSelector.js

;;

(function($){
  "use_strict"; // +_+ jshint
  
  // Clone atual function
  $.hasSelectorOld = $.hasSelector;
  
  // the method
  // @return Boolean
  $.hasSelector = function(selector) {
    return $(selector).length > 0;
  };
  
  // noConflict method
  // @return Function
  $.hasSelector.noConflict = function() {
    var func;
    func = $.hasSelector;
    $.hasSelector = $.hasSelectorOld;
    return func;
  };
  
})(jQuery);