CODEWITHSUNDEEP
functiongo
Akhilesh
Akhilesh

Reputation: 1

Not able to print full string array

I'm trying to return a string array from a function, but it is printing only the last index position value. Here is my code and output.

package main

import (
    "fmt"
)

func main() {

    myquote := varFunc("Go", "Bunny", "Let's", "Change", "ourself")
    fmt.Println("here also:", myquote)

}

func varFunc(s ...string) string {

    fmt.Println(s)

    fmt.Printf("%T\n", s)
    quote := ""
    for _, v := range s {

        quote = v
        fmt.Println("init: ", quote)
    }
    fmt.Println("is there: ", quote)
    return quote

}

Playground: https://play.golang.org/p/jyZDL5oPmcz

My output:

[Go Bunny Let's Change ourself]
[]string
init:  Go
init:  Bunny
init:  Let's
init:  Change
init:  ourself
is there:  ourself
here also: ourself

Program exited.

Upvotes: 0

Views: 192

Answers (2)

WutchZone
WutchZone

Reputation: 154

Because you are overwriting the last value with = operator. If i understood correctly you are trying to print array as a single string. Apply += symbol to qoute and it should work for you.

package main

import (
    "fmt"
)

func main() {

    myquote := varFunc("Go", "Bunny", "Let's", "Change", "ourself")
    fmt.Println("here also:", myquote)

}

func varFunc(s ...string) string {

    fmt.Println(s)

    fmt.Printf("%T\n", s)
    quote := ""
    for _, v := range s {

        quote += v + " "
        fmt.Println("init: ", quote)
    }
    fmt.Println("is there: ", quote)
    return quote

}

Upvotes: 3

Alex Yu
Alex Yu

Reputation: 3547

Your code returns last value of quote which is the value on last iteration on string array s.

If you need to return string array s - return it. Excuse me for truism.

func varFunc(s ...string) []string {

    fmt.Println(s)

    fmt.Printf("%T\n", s)
    quote := ""
    for _, v := range s {

        quote = v
        fmt.Println("init: ", quote)
    }
    fmt.Println("is there: ", quote)
    return s

}

Upvotes: 2

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