Global news & analysis
tylerthe-theatre。关于这个话题，新收录的资料提供了深入分析
Scroll to load interactive demo。业内人士推荐新收录的资料作为进阶阅读
Что думаешь? Оцени!
We can do this by adding a boolean dirty flag to each node. If it’s set to true, then this is a node that needs to be recalculated. Otherwise, it’s up-to-date. Let’s start with these flags all set to false — we have an up-to-date tree. Now, when we update the input node, we can iterate over all the children of that node, and follow a simple algorithm: