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Head

func Head[T any](slice []T) *T

Head returns a pointer to the first element of the slice. Returns nil if the slice is empty.

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package main

import (
    "fmt"

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

func main() {
    numbers := []int{1, 2, 3, 4, 5}

    first := sliceutils.Head(numbers)
    if first != nil {
        fmt.Printf("First: %d\n", *first) // First: 1
    }

    empty := []int{}
    noFirst := sliceutils.Head(empty)
    fmt.Printf("Empty slice head: %v\n", noFirst) // nil
}