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Tagged “observer”

Observer APIs in a nutshell

I’ve played with the various HTML5 Observer APIs (IntersectionObserver, ResizeObserver and MutationObserver) a little over the last few years—for example using ResizeObserver in a container query solution for responsive grids. But in all honesty their roles, abilities and differences haven’t yet fully stuck in my brain. So I’ve put together a brief explainer for future reference.

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