Includes

func Includes[T comparable](slice []T, value T) bool

Includes receives a slice of type T and a value of type T, determining whether or not the value is included in the slice.

package main

import (
    "fmt"
    "strings"

    "github.com/Goldziher/go-utils/sliceutils"
)

func main() {
    friends := []string{"John", "Bob", "Mendy", "Suzy", "John"}

    result := sliceutils.Includes(friends, "John")

    fmt.Print(result) // true
}