Example
- Typical constants
constkeyword can appear anywhere, maybe declaring a type- Type given by explicit cast or use in context
// const declares a constant value. const s string = "constant" fmt.Println(s) // A const statement can appear anywhere a var statement can. const n = 500000000 // Constant expressions perform arithmetic with arbitrary precision. const d = 3e20 / n fmt.Println(d) // A numeric constant has no type until it’s given one, such as by an explicit cast. fmt.Println(int64(d)) // A number can be given a type by using it in a context that requires one, such as a variable assignment or function call. For example, here math.Sin expects a float64. fmt.Println(math.Sin(n))
constant 6e+11 600000000000 -0.28470407323754404