CODEWITHSUNDEEP
if-statementreflectiongotypes
XXXX
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Reputation: 247

turn reflect into comparable data

I want to be able to compare the type of an object using reflect. Here is my code:

package main

import (
    "fmt"
    "reflect"
)

func main() {
    tst := "cat"
    if reflect.TypeOf(tst) == string {
        fmt.Println("It's a string!")
    }

}

This gives me an error type string is not an expression. How can I fix this only using reflect? (no type switches, etc.)

Upvotes: 2

Views: 305

Answers (1)

Not_a_Golfer
Not_a_Golfer

Reputation: 49187

Two simple options:

use Kind: 

if reflect.TypeOf(tst).Kind() == reflect.String {
    fmt.Println("It's a string!")
}

use TypeOf another string:

if reflect.TypeOf(tst) == reflect.TypeOf("") {
    fmt.Println("It's a string!")
}

However, personally I'd prefer a type switch or type check (i.e. if _, ok := tst.(string); ok {...}

Upvotes: 2

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