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The Go Programming Language
book

The Go Programming Language

by Alan A. A. Donovan, Brian W. Kernighan
October 2015
Beginner to intermediate
400 pages
14h 44m
English
Addison-Wesley Professional
Content preview from The Go Programming Language

2.2 Declarations

A declaration names a program entity and specifies some or all of its properties. There are four major kinds of declarations: var, const, type, and func. We’ll talk about variables and types in this chapter, constants in Chapter 3, and functions in Chapter 5.

A Go program is stored in one or more files whose names end in .go. Each file begins with a package declaration that says what package the file is part of. The package declaration is followed by any import declarations, and then a sequence of package-level declarations of types, variables, constants, and functions, in any order. For example, this program declares a constant, a function, and a couple of variables:

gopl.io/ch2/boiling
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