isInViewport

Checks to see if an element is visible in the users viewport. No library dependencies, but you can use libraries for element selection if you choose.

How to use

var isInViewport = require('./isInViewport');

window.onscroll = function() {

  isInViewport.inView(document.querySelectorAll('.icon--item i'), function(el){
    $(el).addClass('zoomIn');
  });
  console.log(isInViewport.isInView(document.querySelectorAll('.icon--item i')));
}

API

.inView(element, callback(element));

fires a callback when the element comes into view, it also returns the element passed to it.

.isInView(element);

boolean returns true or false if the element is in the viewport.