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Pluck

func Pluck[I any, O any](input []I, getter func(I) *O) []O

Pluck receives a slice of type I and a getter func to a field and returns an array containing requested field from each slice's item.

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package main

import (
    "fmt"

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

func main() {
    items := []Pluckable{
        {
            Code:  "azer",
            Value: "Azer",
        },
        {
            Code:  "tyuio",
            Value: "Tyuio",
        },
    }

    result1 := sliceutils.Pluck(items, func(item Pluckable) *string {
        return &item.Code
    }) // []string{"azer", "tyuio""}
    result2 := sliceutils.Pluck(items, func(item Pluckable) *string {
        return &item.Value
    }) // []string{"Azer", "Tyuio"}
}