Description
Go is a statically typed language. Basic types include `bool`, `string`, and numeric types like `int`, `float64`, `complex128`. Go variables are initialized to their zero value if not assigned (0, false, "").
Pros & Cons
✅ Pros
- Precision: Explicit bit-sizes (int8, int64).
- Safety: No implicit casting.
❌ Cons
- Verbosity: Need explicit conversions (e.g. int to float).
When to Use
Defining the structure of your data.
Example
Viewing basic types and zero values.
var (
ToBe bool = false
MaxInt uint64 = 1<<64 - 1
z complex128 = cmplx.Sqrt(-5 + 12i)
)
func main() {
var i int
var f float64
var b bool
var s string
// Prints zero values: 0 0 false ""
fmt.Printf("%v %v %v %q\n", i, f, b, s)
}Best Practices
Choose specific integer types (`int64`) only when you have a specific reason (like hardware integration). Otherwise, use `int`.