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How to Pass a String Slice to a Variadic Empty Interface Parameter in Go?

Susan Sarandon
Susan SarandonOriginal
2024-11-06 22:17:03654browse

How to Pass a String Slice to a Variadic Empty Interface Parameter in Go?

Passing a String Slice to a Variadic Empty Interface Parameter

When working with packages like gosqlite, it's necessary to pass a slice of strings to a variadic method with an empty interface parameter. However, this raises compilation errors due to type incompatibility.

To solve this issue, there is no direct way to pass a string slice. Instead, an empty interface slice can be created, and string references can be copied over. While this approach works, it feels cumbersome.

To streamline the process, one can create a helper function that takes a string slice and converts it to an empty interface slice. Alternatively, reflection can be used to make the function generic but introduces a runtime cost. This approach allows for a cleaner and more efficient way of passing a string slice to the variadic method.

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