Detecting if elements are visible in the current viewport

BASIC CHECK

using getBoundingClientRect & jQuery.

“The returned value is a DOMRect object, which contains read-only left, top, right and bottom properties describing the border-box in pixels. top and left are relative to the top-left of the viewport.”

  1. $.fn.elOnScreen = function(){
  2.     var ele = this.get(0);
  3.     var client = el.getBoundingClientRect();
  4.     return client.top < window.innerHeight && client.bottom > 0;
  5. }

jQuery.visible

“This is a jQuery plugin which allows us to quickly check if an element is within the browsers visual viewport, regardless of the scroll position. If a user can see this element, the function will return true.”

Github

jQuery.isOnScreen

“Simple jQuery plugin to determine if an element is within the viewport. Optional parameters allow the user to specify a minimum percentage of the element’s dimensions that must be visible to qualify.”

Github

Enjoy coding …

Alex

I am a full-stack developer. I love programming,  design and know my way around server architecture as well.  I would never feel complete, with one of these missing. I have a broad range of interests, that’s why I constantly dive into new technologies and expand my knowledge where ever required. Technologies are evolving fast and I enjoy using the latest. Apart from that, I am a peace loving guy who tries to have people around him that think the same.  I truly believe in the principle: “If you help someone, someone will help you, when you need it."

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