Variables / Basic variable declaration / Essential Go
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package main
type Person struct {
FirstName string
LastName string
}
func main() {
// Basic variable declaration. Declares a variable of type specified on the right.
// The variable is initialized to the zero value of the respective type.
var x int
var s string
var p Person // Assuming type Person struct {}
// Assignment of a value to a variable
x = 3
// Short declaration using := infers the type
y := 4
u := int64(100) // declare variable of type int64 and init with 100
var u2 int64 = 100 // declare variable of type int64 and init with 100
// silence compiler error about unused variables
_, _, _, _, _, _ = x, s, p, y, u, u2
}
Go
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