You might have heard about object permanence as a developmental milestone for babies. But what is it, exactly? Object permanence is the concept that an object exists even if you can't see it. For ...

In the C# programming language, an object can be either a value type or a reference type. While a variable of a value type contains its value, a variable of a reference type contains a reference to an ...

If you’ve ever played peekaboo with your little one, you’ve helped them work on object permanence. Your baby is learning that people and objects exist even when they can’t see or hear them. Object ...