Go Language Tutorials: Go Syntax

Go Language Tutorials: Go Syntax

Go Language Tutorials

We have already discussed the structure of a Go programming language in the previous blog. So now it will be very easy to understand more about the language in-depth with all the syntax.

Go Tokens

All the programming languages have tokens which are consist of an identifier, string literals, a keyword or a symbol, and also a constant. For example, Let’s check the following code.

fmt.Println(“FooBar!”)

The above statement consists of the following tokens -

fmt

.

Println

(

“FooBar!”

)

Line separator in Go

In any typical programming language like C or Java, the line is separated using “;” (semicolon) which is not true in the case of the Go language. The Go compiler automatically places “;” (semicolon) at the end of the statement while compiling the program.

Comments in Go

In any programming language comments are used as a helping text in a program source code, they are also ignored by the compiler. There are 2 ways of declaring a comment: “//” or “/**/”.

You cannot declare comments inside comments.

Identifiers in Go

An identifier in Go language is a name used to identify functions, variables, and any other item which is user-defined. Identifiers usually start with a letter a to z or A to Z, or an _ (underscore) with more letters or digits or underscores.

For example, movie_name

Go does not allow special characters such as $, %, and @ along with identifiers. Go language is a case-sensitive programming language. Thus, Information and information are two different identifiers in Go.

Keywords in Go

In any programming language, Keywords are reserved words that are already defined in a language and cannot be used as a variable or a constant.

Break	default	func	interface	select
case	defer	Go	map	Struct
chan	else	Goto	package	Switch
const	fallthrough	if	range	Type
continue	for	import	return	Var