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Web API
Intersection Observer API
2.Polyfill
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Last updated
6 years ago
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IntersectionObserver
polyfill
file
cdn.profill.io
https://github.com/w3c/IntersectionObserver
https://github.com/w3c/IntersectionObserver/tree/master/polyfill
https://github.com/w3c/IntersectionObserver/blob/master/polyfill/intersection-observer.js
https://cdn.polyfill.io/v3/