Structs and Pointers

Part of the Go course

Every variable you have written so far in this course holds one loose value: a single number, a single string, a single slice. Real data rarely comes in ones, though. A point on a screen needs an x and a y together. A user needs a name and an email together.

Think of a paper intake form: a rectangle with labeled boxes, "Name", "Age", "Email", each expecting one particular kind of answer. The form itself is a template, a shape with named slots. Filling one out produces one specific person's answers sitting inside that shape. A struct in Go is exactly that template: a named type made of a list of fields, and each field has its own name and its own type. ...