<ul><li>Regular Variables/Methods: Oreo's name and color are accessible to everyone.</li><li>Static Variables/Methods: Oreo does not know about the totalCatCount or whatAreCats() as they are both static, so it is only known by the Cat class.</li><li>Private Variables/Methods: Oreo's energy level and recoverEnergy() are hidden (private) and can only be accessed using a public method, play().</li><li>Private Static Variables/Methods: Despite being static, the Cat class can't access the #totalCatNaps or #incrementNapCount(), since they are private static.</li></ul>

JavaScript Static vs Private: Explained by My Cat Oreo

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