difference between pointer and slice,difference between slice and array,map,bridge patterns,abstrac pattern,singelton,explain 2 design patterns.explain channels.

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Pointer is a variable that stores the memory address of another variable, while slice is a reference to an underlying array.
Arrays have a fixed size, while slices are dynamic and can grow or shrink.
Maps are key-value pairs, used to store and retrieve data based on a unique key.
Bridge pattern is used to separate an abstraction from its implementation, allowing them to vary independently.
Singleton pattern ensures that a class has only one instance and provides a global point of access to it.
Channels are used for communication between goroutines, allowing them to send and receive values.
Abstract pattern is used to create families of related objects without specifying their concrete classes.
Two design patterns are Factory Method and Decorator.

difference between pointer and slice,difference between slice and array,map,bridge patterns,abstrac pattern,singelton,explain 2 design patterns.explain channels.

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