Go Package reflect

External

• https://pkg.go.dev/strconv

Internal

• Standard library

reflect.TypeOf()

Getting the Type of Variable

package main

import (
  "fmt"
  "reflect"
)

func main() {
  i := 10
  f := 10.1
  s := "blue"
  fmt.Println(reflect.TypeOf(i)) // returns a Type and will print 'int'
  fmt.Println(reflect.TypeOf(f)) // returns a Type and will print 'float64'
  fmt.Println(reflect.TypeOf(s)) // returns a Type and will print 'string'

  err := errors.New("some error")
  fmt.Println(reflect.TypeOf(err)) // returns a Type and will print '*errors.errorString'
}