Go: Structs vs Maps

What are the main differences between structs and maps in Go?

Structs are typed collections of fields, while maps are unordered collections of key-value pairs. Structs have a fixed structure, whereas maps are dynamic.

When should I use a struct instead of a map?

Use structs when you need a fixed schema and want to enforce data types. Maps are better for dynamic data where keys can change.

Can you give an example of when to use each?

Sure! Use a struct for a user profile with fields like Name and Age. Use a map for storing configuration settings where keys might vary.

Are there performance differences between them?

Yes, structs can be more efficient in terms of memory and access speed, while maps may incur overhead due to their dynamic nature.