jquery method to calculate the distance between the mouse and the specified element_jquery

The example in this article describes how jquery calculates the distance between the mouse and the specified element. Share it with everyone for your reference. The specific implementation method is as follows:

(function() {
  var mX, mY, distance,
    $distance = $('#distance span'),
    $element = $('#element');
  function calculateDistance(elem, mouseX, mouseY) {
    return Math.floor(Math.sqrt(Math.pow(mouseX - (elem.offset().left+(elem.width()/2)), 2) + Math.pow(mouseY - (elem.offset().top+(elem.height()/2)), 2)));
  }
  $(document).mousemove(function(e) { 
    mX = e.pageX;
    mY = e.pageY;
    distance = calculateDistance($element, mX, mY);
    $distance.text(distance);     
  });
})();

I hope this article will be helpful to everyone’s jQuery programming.