Golang | How to find the index of rune in the string?

// Go program to illustrate how to find
// the index value of the given rune
package main

import (
    "fmt"
    "strings"
)

func main() {

    // Creating and Finding the first index 
    // of the rune in the given string
    // Using IndexRunefunction
    res1 := strings.IndexRune("****Welcome to GeeksforGeeks****", 60)

    res2 := strings.IndexRune("Learning how to trim"+
                           " a slice of bytes", 'r')

    res3 := strings.IndexRune("GeeksforGeeks", 'G')

    // Display the results
    fmt.Println("Index Value 1: ", res1)
    fmt.Println("Index Value 2: ", res2)
    fmt.Println("Index Value 3: ", res3)

}

// Go program to illustrate how to find
// the index value of the given rune
package main

import (
    "fmt"
    "strings"
)

func main() {

    // Creating and initializing a string
    // Using shorthand declaration
    string_1 := "Welcome to GeeksforGeeks"
    string_2 := "AppleAppleAppleAppleAppleApple"
    string_3 := "%G%E%E%K%S"

    // Creating and initializing rune
    var r1, r2, r3 rune
    r1 = 'R'
    r2 = 'l'
    r3 = 42

    // Finding the first index
    // of the given rune
    // Using IndexRune function
    res1 := strings.IndexRune(string_1, r1)
    res2 := strings.IndexRune(string_2, r2)
    res3 := strings.IndexRune(string_3, r3)

    // Display the results
    fmt.Printf("String 1: %s , Rune 1:%q , Index Value: %d",
                                         string_1, r1, res1)
    
    fmt.Printf("\nString 2: %s , Rune 2:%q , Index Value: %d",
                                           string_2, r2, res2)
    
    fmt.Printf("\nString 3: %s , Rune 3:%q , Index Value: %d", 
                                           string_3, r3, res3)

}