These requirements will hopefully become more clear as we start trying out different algorithms, and seeing examples of their successes and failure modes. Before we get too deep in the weeds, though, I want to emphasise that not all reactive systems are the same, and some don’t need all of these requirements. For example, lots of simple reactive systems work just fine with static dependencies only, trading off some efficiency wins for implementation simplicity. Similarly, glitches are only important if they are actually observed, so some reactive systems will be glitch-y by default, but provide tools for syncing nodes together if the user actually needs them to be in sync.
println(sum(vals)); // 60
，更多细节参见必应SEO/必应排名
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