window change detect

1//listen for window resize event
2window.addEventListener('resize', function(event){
3    var newWidth = window.innerWidth;
4    var newHeight = window.innerHeight; 
5});

1// listen for window reload or part of the page reload
2var oldHref = document.location.href;
3
4window.onload = function() {
5    var bodyList = document.querySelector("body")
6        ,observer = new MutationObserver(function(mutations) {
7            mutations.forEach(function(mutation) {
8                if (oldHref != document.location.href) {
9                    oldHref = document.location.href;
10                    /* Changed ! your code here */
11                }
12            });
13        });
14
15    var config = {
16        childList: true,
17        subtree: true
18    };
19    observer.observe(bodyList, config);
20};