pureComputed disposal with disposeWhenNoSubscribers in Knockout 3.5.0
The goal is to determine whether setting the disposeWhenNoSubscribers flag on a pureComputed observable in Knockout 3.5.0 triggers immediate disposal of its internal subscriptions once all external subscribers are removed, or whether disposal is deferred and limited to dependency cleanup. The pureComputed constructor, introduced in 3.5.0, automatically manag
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