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One of the biggest source of bugs in our apps is state: all of that persistent data we keep around in memory. When things change we need to make sure to update all of it at the right times and with the right new parts of the state that changed. Inevitably things get out of sync and our app is in “a bad state”. Today’s article discusses some ways we can prune the “graph” of objects that we create in OOP so that there’s less state to maintain. Read on for some interesting techniques that could help you prevent bugs!

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