IntersectionObserver’s coming into view - Chrome Developers

IntersectionObserver’s coming into viewPublished on Wednesday, April 20, 2016 • Updated on Tuesday, October 3, 2017 Let’s say you want to track when an element in your DOM enters the visible viewport. You might want to do this so you can lazy-load images just in time or because you need to know if the user is actually looking at a certain ad banner. You can do that by hooking up the scroll event o

[efcl]

Chrome 51で入るIntersectionObserverについての解説記事。 要素がviewport内に表示されたら発火するイベントを設定できる。(発火するしきい値も指定できる) また、rootに対する`ClientRect`の情報なども取得でき、lazyloadや無限リストな

[yosuke_furukawa]

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