How to find the type of object with reflect in Go

reflect package helps us in finding the type of object in Go. It is part of the standard library and so you can just import the package

package main

import (
    "fmt"
    "reflect"
)

func main() {

    isActive := false
    name := "First name"
    age := 32
    score := 34.32
    var smallFloat float32 = 2.42
    names := []string {"name 1", "name 2"}
    
    fmt.Println("Using Reflect package\n");
    fmt.Println(reflect.TypeOf(isActive))
    fmt.Println(reflect.TypeOf(name))
    fmt.Println(reflect.TypeOf(age))
    fmt.Println(reflect.TypeOf(score))
    fmt.Println(reflect.TypeOf(smallFloat))
    fmt.Println(reflect.TypeOf(names))
    
    fmt.Println("\nUsing String formatting\n");
    fmt.Printf("%T\n", isActive)
    fmt.Printf("%T\n", name)
    fmt.Printf("%T\n", age)
    fmt.Printf("%T\n", score)
    fmt.Printf("%T\n", smallFloat)
    fmt.Printf("%T\n", names)
    

}

Output

Using Reflect package

bool
string
int
float64
float32
[]string

Using String formatting

bool
string
int
float64
float32
[]string

Summary

This is a quick post on the different ways to figure out the type of object in Go

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