intersection-observer 32 react 30 lazy-loading 26 intersection 25 observer 23 lazyload 23 performance 22 scroll 21 viewport 18 animation 16 javascript 13 intersectionobserver-api 13 lazy 13 reactjs 12 visibility 11 vue 10 hook 10 component 10 IntersectionObserver 10 inview 9 scrolling 9 lazyload-images 9 lazy load 8 angular 8 images 8 background 7 fetch 7 speed 7 image 7 lazy-load 7 lazyloading 6 prefetch 6 hoc 6 css 6 typescript 6 react-hooks 6 monitor 6 hooks 6 react-component 5 visible 5 react-lazy 5 react-lazy-load 5 react-lazy-module 5 react-performance 5 server-side-rendering 5 ssr 5 dom 5 intersection observer 5 mutationobserver 4 svelte 4 resizeobserver 4 load 4 useInView 4 animations 4 ui 4 useIntersectionObserver 4 in-view 4 loader 4 async 4 resize 4 img 3 direction 3 detect 3 sticky 3 preload 3 hacktoberfest 3 aos 3 responsive-images 3 library 3 frontend 3 animate 3 scrollspy 3 vue3 3 element 3 transform 2 scroll-direction 2 intersection-observer-api 2 waypoint 2 three.js 2 optimization 2 feo 2 position 2 iframe 2 vue-components 2 observe 2 lit-element 2 helper 2 stl 2 model viewer 2 loading 2 litelement 2 polymer 2 three 2 webcomponent 2 observing 2 in-viewport 2 prefetching 2 inviewport 2 lazyload-image 2 router 2