jQuery's implementation of :visible :hidden
var itemVisibleInterval = window.setInterval(function() {
console.log('checking to see if item is here');
var item = document.getElementById('my_item');
if (item && isVisible(item)) {
console.log('item is visible');
window.clearInterval(itemVisibleInterval);
}
}, 100);
// jQuery 1.3+ overhauled implementation
// http://blog.jquery.com/2009/02/20/jquery-1-3-2-released/#:visible.2F:hidden_Overhauled
function isVisible(element) {
if (element) {
return element.offsetWidth > 0 && element.offsetHeight > 0;
}
else {
return false;
}
}
// Where el is the DOM element you'd like to test for visibility
// jQuery pre 1.3 implementation
function isHidden(el) {
var style = window.getComputedStyle(el);
return (style.display === 'none');
}