var can be used at package and function level, supports explicit type declaration, and initializes with zero values if not assigned
:= (short variable declaration) can only be used inside functions, always requires initialization, and uses type inference
// Package level - must use var
var globalVar string
func main() {
// Both are valid inside functions
var localVar string // Zero value: ""
shortVar := "hello" // Type inferred as string
}
Rewriting in plainer words…
This answer doesn't lend itself to a diagram - it reads best . No credits were charged.
