While virtual DOM reduces DOM updates, it is also pure overhead as we need to diff at every step.
This is why svelte.dev/ is very exciting. It is not a framework, but a compiler. It will generate the js that will update the DOM directly without needing any diff.
Like vue1.x? it means every DOM has a watcher instance, when state changed，the deps call the notify method to call all of the watchers to update the dom
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While virtual DOM reduces DOM updates, it is also pure overhead as we need to diff at every step.
This is why svelte.dev/ is very exciting. It is not a framework, but a compiler. It will generate the js that will update the DOM directly without needing any diff.
Like vue1.x? it means every DOM has a watcher instance, when state changed，the deps call the
notifymethod to call all of the watchers to update the dom