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    Refactor Inlined React setState Function to a setState Updater Factory

    reactReact
    ^16.0.0

    React's setState accepts an updater function that given current state returns new state. To better define and manage our setState usages, we can extract our inlined setState function to a setState updater factory. This enables us to give it a descriptive name, define required arguments, and ease future reuse, refactoring and composition for updating component state in our application.