I’ve played with the various HTML5 Observer APIs (
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.
Just because Stimulus.js is designed to work primarily with existing HTML doesn’t mean it can’t use JSON APIs when the need arises.
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