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urlSyncEffect(...)

An optional effect that may be used instead of syncEffect() for URL Persistence in order to specify additional options, such as if state changes should replace the URL or push a new entry in the browser history stack.


function urlSyncEffect<T>(options: {
...SyncEffectOptions<T>,
history?: 'replace' | 'push',
}): AtomEffect<T>
  • history -
    • replace (default) - Replace the current browser URL with the updated state.
    • push - Push a URL with the updated state onto the browser history stack.

If a transaction contains mutations from some atoms that replace and some atoms that push state changes, then the URL will first replace with the items to replace and then push a new URL on the stack with the full changes from the batched transaction.