jquery if element visible on screen code example

Example 1: jquery visible

$(":visible");
//or
$().is(":visible");

Example 2: javascript check if element is visible on screen

// Where el is the DOM element you'd like to test for visibility
<script>
  function isHidden(el) {
    return (el.offsetParent === null);
  }
  var el = document.getElementById('el');
  alert(isHidden(el));
</script>
// if true then element "el" is visible otherwise not visible