Now You See Me: How To Defer, Lazy-Load And Act With IntersectionObserver

Intersection information is needed for many reasons, such as lazy loading of images. But there’s so much more.

Smashing Magazine
Jun 8, 2018 · 20 min read

By Denys Mishunov

Once upon a time, there lived a web developer who successfully convinced his customers that sites should not look the same in all browsers, cared about accessibility, and was an early adopter of CSS grids. But deep down in his heart it was performance that was his true passion: He…

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