What is the zero value in Go, and how does it apply to different data types?
- It applies only to numeric types.
- It's a constant value of zero.
- It's a default value for variables.
- It's the initial value of a slice.
In Go, the zero value is the default value assigned to variables of any data type when they are declared without an explicit initialization. It's not necessarily zero but varies depending on the data type. For instance, the zero value for numeric types is 0, for strings it's an empty string "", and for slices and maps, it's nil. Understanding the zero value is crucial when working with uninitialized variables and ensures predictable behavior in your code.
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