Main
Lessons

Go Lang Notes

Getting Started

In GO programmers use camel case for names so things like ‘CamelCase’ or ‘camelCase’ but not ‘camel_case’.

Main types of Declarations:

name type syntax example
var variable var name type = expression var myVar int = 5
const constant const name type = expression const myVar string = “something”
type
func function func name (input_type) output_type { }

Types of Variables

name type example
int integer number 25
float64 long 64 bit decimal 1.01234
string string “some string”
bool boolean true

Ways to declare

var i, j, k int
const myConstant string = "some constant"

var b, f, g = true, 2.3, "text"
short variable declaration

these are very common although they can only be used inside a function and not globals.

variableName := "expression"

Multiple Declarations from a function

functions in GO can return more then one value thus declarations are flexible for that too.

f, g := os.Open(name)

so in the above example f & g are both declared and assigned in one line simply. sadf

Included help files

you can use the godoc <pkg> command to get help on that package