[name] asked: what is alias in Go?

In Go, an alias (псевдоним) is a way to create a new name for an existing type. Unlike defining a new type, an alias does not create a new type, but simply provides another name for the existing one.

It is declared using the syntax:

type NewName = ExistingType

Example:

type MyInt = int

Here, MyInt is an alias for the int type. Variables of type MyInt and int are considered the same type and can be used interchangeably.

Aliases are useful for simplifying long type names or for compatibility with other packages.