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course/4-structs/exercises/3-anonymous_structs/readme.md

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+# Anonymous Structs in Go
+
+An anonymous struct is just like a normal struct, but it is defined without a name and therefore cannot be referenced elsewhere in the code.
+
+To create an anonymous struct, just instantiate the instance immediately using a second pair of brackets after declaring the type:
+
+```go
+myCar := struct {
+  Make string
+  Model string
+} {
+  Make: "tesla",
+  Model: "model 3"
+}
+```
+
+You can even nest anonymous structs as fields within other structs:
+
+```go
+type car struct {
+  Make string
+  Model string
+  Height int
+  Width int
+  // Wheel is a field containing an anonymous struct
+  Wheel struct {
+    Radius int
+    Material string
+  }
+}
+```
+
+## When should you use an anonymous struct?
+
+In general, *prefer named structs*. Named structs make it easier to read and understand your code, and they have the nice side-effect of being reusable. I sometimes use anonymous structs when I *know* I won't ever need to use a struct again. For example, sometimes I'll use one to create the shape of some JSON data in HTTP handlers.
+
+If a struct is only meant to be used once, then it makes sense to declare it in such a way that developers down the road won’t be tempted to accidentally use it again.
+
+You can read more about [anonymous structs here](https://blog.boot.dev/golang/anonymous-structs-golang/) if you're curious.