Question

How to check if element exists in a slice with Go

Answer 1

package main

import (
    "fmt"
)

func main() {

    arr := []string{"go", "c++", "php", "python"}

    _, found := Find(arr, "abc")
    if !found {
        fmt.Println("not found")
    }

    i, found := Find(arr, "php")
    if !found {
        fmt.Println("not found")
    }
    fmt.Printf("found at index: %d\n", i)
}

func Find(slice []string, val string) (int, bool) {
    for i, item := range slice {
        if item == val {
            return i, true
        }
    }
    return -1, false
}
 
 
/*
run:
 
not found
found at index: 2
 
*/

 

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